a2zinterviews

6.	25, 49, 81, 121, 144, 169
	A.  49
	B.  121
	C.  144
	D.  169

Solution

144. Each of the numbers except 144 is a perfect square.

7.	4, 16, 25, 36, 42, 64
	A.  36
	B.  25
	C.  42
	D.  95

Solution

42. The Pattern is 2² ,4², 5², 6², 7², 8². But instead of 7², it is 49, which is to be turned out.

8.	385, 462, 572, 427, 671, 264
	A.  385
	B.  427
	C.  671
	D.  264

Solution

427. In each number except 427, the middle digit is the sum of the other two.

9.	253, 136, 352, 324, 631, 244
	A.  324
	B.  136
	C.  352
	D.  631

Solution

324. The Sum of the digits in each number, Except 324 is 10.

10.	2, 5, 10, 17, 26, 37, 50, 64
	A.  50
	B.  26
	C.  64
	D.  37

Solution

64. The Pattern is x²+1 , where x=1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 etc. But 64 is out of Pattern.