Aptitude Quiz

Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again?

• 48 seconds
• 45 seconds
• 16 seconds
• 8 seconds

Three bells toll together at the same time after the first bell stays quiet for 12 seconds, the second bell for 15 seconds and the third bell for 18 seconds. During a duration of 30 minutes, how many times will the three bells toll together?

• 10

• 11

• 12

• 15

Which number is divisible by 9

• 345

• 8522

• 98874

In a class there are 15 boys and 20 girls, find the ratio of number of girls to the total number of students in the class

• 3 : 4

• 4 : 3

• 4 : 7

• 7 : 4

Identify the number in the blank:
7 kg : _____kg = 14 m : 6 m 

• 3
• 6
• 4
• 2

A flowershop has 240 roses and sunflowers. The ratio of roses to sunflowers is 7:3.

How many roses are there in the flowershop?

• A. 168

• B. 144

• C. 96

• D. 72

Mean proportional between c and d is

• ab

• c X d

The fourth proportional to 4, 9, 12 is ____

• 16

• 21

• 27

• 36

A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train(m)?

• 120

• 180

• 324

• 150

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:

• 625

• 630

• 640

• 650