Mathematics Quiz 3

The average of five numbers is 27. If one number is excluded, the average becomes 25. The excluded number is__________?

If a > b and b > a. Then ?

P, Q and R can do a work in 20, 30 and 60 days respectively. How many days does it need to complete the work if P does the work and he is assisted by Q and R on every third day?

The time taken by a man to row his boat upstream is twice the time taken by him to row the same distance downstream. If the speed of the boat in still water is 42 kmph, find the speed of the stream?

The ratio of boys and girls in a class was 11:13. 8 girls and 4 boys join the class from this academic year and the ratio becomes 4:5. Find the strength of the class.

The number of rounds that a wheel of diameter 7/11 m will make in going 4 km is:_________?

Two number is first increased by 10 % and then reduced by 10 % the number:__________?

A shopkeeper sold an article offering a discount of 5% and earned a profit of 23.5%. What would have been the percentage of profit earned if no discount was offered?

Masood?s age 18 years hence will be thrice his age four years ago. Find Masood?s present age?

4 men and 2 woman can complete a work in 2 days. If 2 men alone take 5 days to complete the work, find the time taken by 2 women alone to complete the work.

If the simple interest on a certain sum of money after 3 1?8 years is 1?4 of the principal, what is the rate of interest per annum?

A and B began business with Rs.3000 and Rs.4000 after 8 months, A withdraws Rs.1000 and B advances Rs.1000 more. At the end of the year, their profits amounted to Rs.630 find the share of A.

A man purchased a watch for Rs. 400 and sold it at a gain of 20% of the selling price. The selling price of the watch is:__________?

The difference between the compound interest compounded annually and simple interest for 2 years at 20% per annum is Rs.144. Find the principal?

A train when moves at an average speed of 40 kmph, reaches its destination on time. When its average speed becomes 35 kmph, then it reaches its destination 15 minutes late. Find the length of journey.

The number which exceeds 16% of it by 42 is________?

A can do a certain work-in the same time in which B and C together can do it. If A and B together could do it in 10 days and C alone in 50 days, then B alone could do it in_________?

In a can, there is a mixture of milk and water in the ratio 4 : 5. If it is filled with an additional 8 litres of milk the can would be full and ratio of milk and water would become 6 : 5. Find the capacity of the can?

A man travels from A to B at a speed of 30 kmph and returns with a speed of 60 kmph. What is the average speed of the man?

If a man walks at 6 kmph, he can reach his destination at 9:00 am. However, he walks a little slower and reaches only at 10:00 am. If the distance to his destination was 12 km, at what speed did he walk?

If 30% of a number exceeds 20% of it by 18, then find the number?

The mean of 50 observations was 36. It was found later that an observation 48 was wrongly taken as 23. The corrected new mean is___________?

In an election between two candidates 75 % of the voters cast their votes. Out of which 2 % of the voters were declared invalid. A candidate got 9261 votes which were 75 % of the total valid votes. The total number of voters enrolled in that election was:__________?

If the price has fallen by 10% what percent of its consumption be: increased so that the expenditure may be the same as before?

Two pipes A and B can fill a tank in 20 and 30 minutes respectively. If both the pipes are used together, then how long will it take to fill the tank?

(492?* 182) / 324 = ________?

The average of first five prime numbers greater than 20 is____________?

A man buys Rs. 25 shares in a company which pays 9% dividend . The money invested is such that it gives 10% on investment. At what price did he buy the shares?

Nabeela took a loan of Rs. 1200 with simple interest for as many years as the rate of interest. If she paid Rs. 432 as interest at the end of the loan period, what was the rate of interest ?

A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is________?

HCF of 3/16, 5/12, 7/8 is__________?

A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:

3.5 can be expressed in terms of percentage as?

1252?* 23?+ 35000 = (?)2

A car travels 50% faster than a bike. Both start at the same time from A to B The car reaches 25 minutes earlier than the bike. If the distance from A to B is 100 km, find the speed of the bike.

A sum of money amounts to Rs. 9800 after 5 years and Rs. 12005 after 8 years at the same rate of simple interest. The rate of interest per annum is:

In the first 10 overs of a cricket game, the run rate was only 3.2. What should be the rate in the remaining 40 overs to reach the target of 282 runs?

A tap can fill a tank in 6 hours. After half the tank is filled, three more similar taps are opened. What is the total time taken to fill the tank completely?

In an election between two candidates. One got 55 % of the total valid votes. 20 % of the votes were invalid. If the total number of votes was 7500. The number of valid votes that the other candidate got was_________?

A salt manufacturing company produced a total of 5000 tonnes of salt in January of a particular year. Starting from February its production increased by 100 tonnes every month over the previous months until the end of the year. Find its average monthly production for that year?

A rectangle has 15 cm as its length and 159 cm2?as its area. Its area is increased to 1 1/3 times the original area by increasing only its length its new perimeter is:_________?

The successive discounts 20% and 15% are equal to a single discount of__________?

A sum of money trebles itself in 15 years, 6 months. In how many years would it double itself ?

Pipe A can fill a tank in 5 hours, pipe B in 10 hours and pipe C in 30 hours. If all the pipes are open, in how many hours will the tank be filled?

Find the roots of the quadratic equation: 2?2 + 3x ? 9 = 0?

Which of the following fractions is the largest?

A sum of Rs. 12,500 amounts to Rs. 15,500 in 4 years at the rate of simple interest What is the rate of interest ?

(84 ? 14 ? 2 ? 9) * ? = 33?

(830 + ? * 3 * 14 / 100) ? (830 * 14 * 3 / 100) = 20.16

Nawaz Sahrif spends 10% of his income in house rent, 20% of the rest on his children?s education, 25% of the rest miscellaneous causes. If he now posses Rs. 1944 then his income is_______?