a2zinterviews

29.	The difference between a number and its two fifth is 510. What is 10% of that number?
	A.  12.75
	B.  50
	C.  85
	D.  204

Solution

Let the number be x. Then, x - 2 / 5 x = 510. ‹=›3 / 5 x = 510 ‹=›x = [510 x 5 / 3] = 850. Therefore 10% of 850 = 85.

30.	Two tailors X and Y are paid a total of Rs. 550 per week by their employer. If X is paid 120 percent of the sum paid to Y, how much is Y paid per week?
	A.  Rs. 200
	B.  Rs. 250
	C.  Rs. 300
	D.  Rs. 350

Solution

Let the sum paid to Y per week be Rs. z. Then, z + 120% of z = 550. ‹=›z + 120 / 100 z = 550 ‹=› 11 / 5 z = 550 ‹=›z = [550 x 5 / 11] = 250.

31.	A student has to obtain 33% of the total marks to pass. He got 125 marks and failed by 40 marks. The maximum marks are
	A.  300
	B.  400
	C.  500
	D.  800

Solution

Let the maximum marks be x. Then, 33% of x = 125 + 40 ‹=› 33 / 100x = 165 x ‹=› [165 x 100 / 33] = 500