Quantitative Aptitude - Arithmetic Ability Questions

An 80 litre mixture of water and acid contains 20% acid. How much acid should be added to make the acid 60% in the new mixture?

A boy buys 5 pencils at Rs 3 each, 3 erasers at Rs 2 each and 3 sharpeners at Rs 5 each. What is the average expenditure (in Rs) per article?

A sum becomes Rs 8800 in 4 years at simple interest at the yearly interest rate of 25% per annum. What is the sum (in Rs)?

A and B together can do a piece of work in 12 days while A alone can do the same work in 30 days. B alone can do it in

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

In ΔPQR, S and T are points on side PQ and PR respectively. ST is parallel to QR. If S divides PQ in the ratio 1:5 and length of QR is 15 cm, find ST?

Find the odd words/letters/number from the given alternatives.

Rearrange the jumbled up letters in their natural sequence and find the odd one out.