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BSNL SET (General Aptitude Set-5)

Question 1

Find the HCF of 306 and 657.

Question 2

If a number is increased by 20% and then decreased by 20%, what is the net percentage change?

Question 3

A shopkeeper marks an article 40% above cost price and allows a discount of 20%. What is his profit percentage?

Question 4

Find the simple interest on Rs. 4800 at 12.5% per annum for 2 years.

Question 5

The compound interest on Rs. 5000 at 10% per annum for 2 years is:

Question 6

If A:B = 5:7 and B:C = 3:4, find A:C.

Question 7

The average of 8 numbers is 15. If the average of first 7 numbers is 14, what is the 8th number?

Question 8

A can do a work in 12 days and B can do it in 18 days. In how many days can they complete it together?

Question 9

A train crosses a pole in 10 seconds and a platform in 25 seconds. If the platform is 300 m long, what is the speed of the train?

Question 10

The radius of a circle is 14 cm. Find its area. (π = 22/7)

Question 11

Solve for x: 3x + 7 = 25

Question 12

What is the remainder when 7^103 is divided by 6?

Question 13

If the price of sugar increases by 25%, by what percent should consumption be reduced to keep expenditure same?

Question 14

A trader mixes two varieties of tea costing Rs. 40/kg and Rs. 60/kg in the ratio 3:2. What is the cost per kg of the mixture?

Question 15

Find the compound interest on Rs. 8000 at 5% per annum for 1 year, compounded half-yearly.

Question 16

The average age of 5 persons is 30 years. If one person of age 40 replaces a person of age 25, what is the new average?

Question 17

A, B and C can do a work in 12, 18 and 36 days respectively. In how many days will they complete the work together?

Question 18

A man walks at 5 km/h and runs at 10 km/h. He covers a certain distance by walking and returns by running. What is his average speed?

Question 19

Find the volume of a cube whose side is 7 cm.

Question 20

Solve: 2x - 5 = 3x - 11

Question 21

The LCM of two numbers is 180 and their HCF is 12. If one number is 36, find the other number.

Question 22

If 35% of a number is 280, what is the number?

Question 23

A shopkeeper sells two articles at Rs. 1000 each. On one he gains 25% and on the other he loses 25%. What is his net result?

Question 24

Find the simple interest on Rs. 7500 at 8% per annum for 3 years.

Question 25

In what ratio must water be mixed with milk costing Rs. 12/litre to get a mixture worth Rs. 8/litre?

Question 26

The average of 10 numbers is 20. If each number is increased by 5, what is the new average?

Question 27

If 12 men can do a work in 15 days, how many men are needed to do it in 10 days?

Question 28

Two trains of length 150 m and 100 m run in opposite directions at 60 km/h and 40 km/h. In how many seconds will they cross each other?

Question 29

Find the curved surface area of a cylinder of radius 7 cm and height 10 cm. (π = 22/7)

Question 30

Solve: x/3 + x/4 = 7

Question 31

What is the smallest number which when divided by 6, 8 and 12 leaves remainder 1 in each case?

Question 32

If the population of a town increases by 10% annually, what will be the percentage increase in 2 years?

Question 33

A dishonest dealer uses a weight of 900 g instead of 1 kg. What is his gain percentage?

Question 34

Find the compound interest on Rs. 10000 at 10% per annum for 2 years.

Question 35

The ratio of ages of A and B is 4:5. After 10 years it becomes 5:6. Find their present ages.

Question 36

The average of 7 numbers is 21. If one number is excluded, the average becomes 20. Find the excluded number.

Question 37

A alone can do a work in 20 days and B alone in 30 days. They work together for 5 days, then A leaves. How many more days will B take to finish the work?

Question 38

A cyclist covers a distance in 2 hours at 15 km/h. How long will he take to cover the same distance at 10 km/h?

Question 39

Find the area of a triangle with base 14 cm and height 10 cm.

Question 40

Solve: 5x - 3 = 2x + 12

Question 41

If the product of two numbers is 180 and their HCF is 6, what is their LCM?

Question 42

If 75% of a number is 300, what is 120% of that number?

Question 43

A man sells an article at a loss of 10%. If he had sold it for Rs. 36 more, he would have gained 5%. Find the cost price.

Question 44

Find the simple interest on Rs. 6000 for 2 years at 7.5% per annum.

Question 45

In a mixture of 60 litres, the ratio of milk and water is 2:1. How much water must be added to make the ratio 1:1?

Question 46

The average weight of 8 persons is increased by 2 kg when a new person replaces one of them. What is the difference in their weights?

Question 47

If 15 men can do a work in 12 days, how many days will 10 men take to do the same work?

Question 48

A boat goes 24 km downstream in 2 hours and returns in 3 hours. Find the speed of the boat in still water.

Question 49

Find the volume of a cylinder of radius 3.5 cm and height 10 cm. (π = 22/7)

Question 50

The price of an article is increased by 20% and then decreased by 10%. What is the net percentage change in the price?

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