Quantitative Aptitude - Arithmetic Ability Questions

One pipe can fill an empty cistern in 4 hours while another can drain the cistern when full in 10 hours. Both the pipes were turned on when the cistern was half-empty. How long will it take for the cistern to be full?

A person purchased 10 shirts costing Rs 150 per shirt. Next day  he again purchased the shirts costing Rs 150 per shirt at a discount of Rs 30 per shirt and that day he spent a toal of Rs 1800. What is the average cost per shirt (in Rs)?

The ratio between Ram's age and Rahim's age is 10:11. What is the age of Rahim in percentage of Ram's age

What is the distance between the points (4,7) and (­1,­5)?

If x = x2+11 2 - 2, then x3 + 5x2 + 12x is

What is the value of (4a2 + 8b + 14c + 2)/2 ?

Find the odd word/letters/number pair from the given alternatives

Select the odd letters from the given alternatives.