Quantitative Aptitude - Arithmetic Ability Questions

If 170% of a number added to 66, then the result becomes equal to twice of the number. What is the number?

56% of 250 is

If a+bab=21 ,  then the value of (a-b) is

What is the area (in sq cm) of a circle whose circumference is 26.4 cm?

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

If the value of √30  is approximately 5.477, then what is the approximate value of 56 ?

A man can row upstream at 12 km/hr and downstream at 18 km/hr. The man's rowing speed in still water is

If a merchant offers a discount of 25% on the list price, then he makes a loss of 5%. What % profit or % loss will he make if he sells at a discount of 10% of the list price?