CBSE - Aptitude Mathematics

The geometric mean of the following series is Marks 0-10 10-20 20-30 30-40 40-50 No. of students 5 7 15 25 8 1.20.64 marks 2.19.6 marks 3.15.64 marks 4.35.64 marks

A warehouse has 20 packers. Each packer can load 1/8 of a box in 9 minutes. How many boxes can be loaded in 1 1/2 hours by all 20 packers? 1. 1 1/4 2. 10 3. 20 4. 25

Raghu buys two articles for Rs.900. He sells one at 10% loss and the other at 2% gain. On the whole, he neither gains nor loses. The cost price of the two articles is 1. Rs.450, Rs.450 2. Rs.75, Rs.825 3. Rs.180, Rs.720 4. Rs.150, Rs.750

A woman has a certain number of mangoes. She sells one more than half the number to A, one more than half of the remainder to B and one more than half of what she has now left to C. Her stock is now sold. The total number was 1. 30 2. 14 3. 16 4. 44

Find 3 numbers in the ratio of 3:2:5, such that the sum of their squares is 1862. 1. 18,12,30 2. 24,16,40 3. 15,20,35 4. 21,14,35