Quantitative Aptitude - Arithmetic Ability Questions

The mean score in a test of the 10 boys in a class was 15 while the overall mean of the 25 students in the class was 16.2. What was the mean score of the girls?

The compound interest on Rs. 64,000 for 3 years, compounded annually at 7.5% p.a. is Rs. 64,000

The income of Rahul is Rs 60000 and his expenditure is Rs 40000. If his income is increased by 20% and expenditure in increased by 15%, then what will be the percentage increase in his savings?

The value of a machine depreciates at the rate of 20% per annum. If its present value is Rs 96000, then what was the value (in Rs) of the machine 2 years ago?

sin(A+B) -­ sin(A-­B) is equal to

If 9x = 24311, then what is the value of x?

What is the value of sec 5π/4?

select the odd word/letters/number/number pair from the given alternatives.