Quantitative Aptitude - Arithmetic Ability Questions

R is 80% more efficient than S. If S alone can make a book in 90 days, then R alone can make the book in how many days?

P + Q = 2(P-Q). If Q = 10, what is the value of P?

A sum of Rs 8000 is borrowed at compound interest at the rate of 7% per annum. What will be the amount (in Rs) after 2 years?

In the following question, select the odd letter/letters from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

If selling price and cost price of an article are Rs. 684.25 and Rs. 595 respectively, then what is the profit percentage?

ΔPQR is right angled at Q. If cosP = 3/5, then what is the value of cosR ?

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