Quantitative Aptitude - Arithmetic Ability Questions

20% of a = b, then b% of 20 is the same as _________ of a.

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

The sum of three numbers is 67. If the ratio of the first number to the second number is 3 : 5 and that of the second number to the third number is 4 : 7, then what is the second number ?

The least number to be added to 13851 to get a number which is divisible by 87 is

A car travels a certain distance at 32 km/h and comes back at 68 km/h. What is the average speed for total journey?

If x = [1/(√5 + √3)], y = [1/(√7 + √5)] and z = [1/(√7 + √3)], then what is the value of (x + y + z)?

What is that least number that must be added to the product 684 × 686 to make it a perfect square?

The addition of a rational number and its reciprocal is 61/30. Calculate the number.