Mathematics Quiz 32

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**LCM of 1/3, 5/6, 5/4, 10/7 is_________?**

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**A person was asked to subtract 25% of a number from the original but he subtracted 25 from the number. His answer was 25 more than correct one. What was the original number?**

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**How many four digit numbers can be formed using the digits {1, 3, 4, 5, 7,9}(repetition of digits is not allowed)?**

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**8 men can dig a pit in 20 days. If a man works half as much again as a boy, then 4 men and 9 boys can dig a similar pit in:__________?**

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**A person bought an article and sold it at a loss of 10%. If he had bought it for 20% less and sold it for Rs.75 less, he could have gained 25%. What is the cost price?**

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**A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings?**

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**Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are__________?**

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**The difference between compound interest and simple interest on Rs 8000 at 5% P.a for 3 years is_________?**

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**A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required?**

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**How much time will it take for an amount of Rs. 900 to yield Rs. 81 as interest at 4.5% per annum of simple interest?**

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**Afnan wants to borrow Rs.6000 at rate of interest 6% p.a. at S.I and lend the same amount at C.I at same rate of interest for two years. What would be his income in the above transaction?**

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**How much 60% of 50 is greater than 40% of 30?**

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**A two-digit number is such that the product of the digits is 8. When 18 is added to the number, then the digits are reversed. The number is :_________?**

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**Five bells first begin to toll together and then at intervals of 5, 10, 15, 20 and 25 seconds respectively. After what interval of time will they toll again together?**

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**P and Q started a business investing Rs. 85,000 and Rs. 15,000 respectively. In what ratio the profit earned after 2 years be divided between P and Q respectively?**

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**In a hospital there are enough injections sufficient for 15 days. Originally there were 80 patients but 40 more patients appeared. How many days these injections will be sufficient for now?**

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**? % of 400 + 40% of 160 = 17% of 400**

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**If the price of an article went up by 20%, then by what percent should it be brought down to bring it back to its original price?**

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**Walking at 80% of his usual speed, a man is 10 mins late to his office. Find the usual time taken by hime to reach his office.**

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**A boat running upstream takes 8 hours 48 min to cover a certain distance while it takes 4 hours to cover the same distance running downstream. What is the ratio between the speed of the boat and the speed of water current respectively?**

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**Greatest Common Divisor of two numbers is 8 while their Least Common Multiple is 144. Find the other number if one number is 16.**

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**A large tanker can be filled by two pipes A and B in 60 minutes and 40 minutes respectively. How many minutes will it take to fill the tanker from empty state if B is used for half the time and A and B fill it together for the other half?**

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**According to a recipe, 400 grams of flour should be mixed with 500 grams of sugar to bake cookies. If I have only 300 grams of flour, how much sugar should I mix to maintain the same proportion?**

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**A trader purchased two colour televisions for a total of Rs. 35000. He sold one colour television at 30% profit and the other 40% profit. Find the difference in the cost prices of the two televisions if he made an overall profit of 32%?**

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**The H.C.F of two numbers is 11 and their L.C.M is 7700. If one of the numbers is 275, then the other is__________?**

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**Three cubes of metal whose edges are 9, 12 and 15 cm respectively, are melted and one new cube is made. Find the edge of the new cube?**

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**The average salary of a person for the months of January, February, March and April is Rs.8000 and that for the months February, March, April and May is Rs.8500. If his salary for the month of May is Rs.6500, find his salary for the month of January?**

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**12 3/4 * (1 2/17 / 8 1/6) / 5 4/3 = __________?**

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**A candidate who gets 30% of the marks fails by 50 marks. But another candidate who gets 45% marks gets 25 marks more than necessary for passing. Find the number of marks for passing?**

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**A sum of Rs.4800 is invested at a compound interest for three years, the rate of interest being 10% p.a., 20% p.a. and 25% p.a. for the 1st, 2nd and the 3rd years respectively. Find the interest received at the end of the three years.**

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**Two pipes can fill a tank in 20 and 24 minutes respectively and a waste pipe can empty 3 gallons per minute. All the three pipes working together can fill the tank in 15 minutes. The capacity of the tank is?**

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**P can lay railway track between two stations in 16 days. Q can do the same job in 12 days. With the help of R, they completes the job in 4 days. How much days does it take for R alone to complete the work?**

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**A and B entered into a partnership investing Rs.25000 and Rs.30000 respectively. After 4 months C also joined the business with an investment of Rs.35000. What is the share of C in an annual profit of Rs.47000?**

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**A invested some money in 10% stock at 96. If B wants to invest in an equality good 12% stock, he must purchase a stock worth of___________?**

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**A tank can be filled by a pipe in 20 min. and by another pipe in 60 min. Both the pipes are kept open for 10 min. and then the first pipe is shut off. After this, the tank will be completely filled in__________?**

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**A man invests a certain sum of money at 6% per annum simple interest and another sum at 7% per annum simple interest. His income from interest after 2 years was Rs. 354. One-forth of the first sum is equal to one-fifth of the second sum. The total sum invested was :**

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**8 children and 12 men complete a certain piece of work in 9 days. If each child takes twice the time taken by a man to finish the work, in how many days will 12 men finish the same work ?**

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**A person got Rs.48 more when he invested a certain sum at compound interest instead of simple interest for two years at 8% p.a. Find the sum?**

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**The population of a city increases at the rate of 4% p.a. but there is an additional annual increase of 1% in the population due to some job seekers. The percentage increase in the population after 2 years is_________?**

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**A cistern can be filled by a tap in 4 hours while it can be emptied by another tap in 9 hours. If both the taps are opened simultaneously, then after how much time will the cistern get filled?**

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**In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples?**

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**40% of a number is more than 20% of 650 by 190. Find the number?**

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**If 6 men take 9 days to complete a work, how many men can complete the work in 3 days?**

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**What are the chances that no two boys are sitting together for a photograph if there are 5 girls and 2 boys?**

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**The capacity of a cylindrical tank is 246.4 litres. If the height is 4 metres, what is the diameter of the base ?**

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**Shohaib invested Rs. 8000 in a scheme for 2 years at compound interest rate 5% p.a. How much amount will Shohaib get on maturity of the fixed deposit?**

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**A trader lists his articles 20% above C.P and allows a discount of 10% on cash payment. His gain percent is:**

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**A rectangular measure 8cm on length and it?s diagonals measures 10cm what is the perimeter of the rectangular?**

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**1296 ? (24 * 0.75) = ______?**

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**The average of women and child workers in a factory was 15%yr. The average age of all the 16 children was 8yr and average age of women workers was 22 yrs if ten women workers were married then the number of unmarried women workers were________?**

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**Find the area of the quadrilateral of one of its diagonals is 20 cm and its off sets 9 cm and 6 cm?**

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**4 singers, 5 dancers and 3 comperes divide an amount of Rs.130000 among themselves such that 3 comperes get as much as 2 dancers and 3 dancers get as much as 2 singers. Find the amount received by a singer.**

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**52 * 40.1 = ________?**

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**If eggs cost $.06 each ,how much should a dozen eggs cost ?**

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**The length of the longest rod that can fit in a cubical room of 4 m side is?**

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**A brick measures 20 cm * 10 cm * 7.5 cm how many bricks will be required for a wall 25 m * 2 m * 0.75 m?**

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**Rayan invested certain amount for two rates of simple interests at 6% p.a. and 7% p.a. What is the ratio of Rayan?s investments if the interests from those investments are equal?**

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**A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?**

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**The average amount with a group of seven numbers is Rs. 20. If the newly joined member has Rs. 50 with him, what was the average amount with the group before his joining the group?**

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**A cloth merchant has announced 25% rebate in prices. If one needs to have a rebate of Rs. 40. Then how many shirts each costing Rs.32 he should purchase?**

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**A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?**

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**The cost price of an article is 64% of the marked price. Calculate the gain percent after allowing a discount of 12%.**

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