Answer: (E)
Question: Look at this series: 0.05, 0.2, ____, 3.2, 12.8, ... What number should fill the blank?
Options:
(A) 0.5
(B) 0.6
(C) 0.9
(D) 0.7
(E) 0.8
[CoT]: [This is a simple multiplication series. Each number is 4 times greater than the previous number.]

Answer: (C)
Question: Find the largest 4 digit number which isexactly divisible by 88?
Options:
(A) 7851
(B) 8902
(C) 9944
(D) 9578
(E) 9734
[CoT]: [Largest 4 digit number is 9999
After doing 9999 88 we get remainder 55
Hence largest 4 digit number exactly divisible by 88 = 9999 - 55 = 9944]

Answer: (D)
Question: There are a total of 15 numbers with an average of 11. The average of first seven numbers is 14 and the average of last seven numbers is 6. What is the middle number?
Options:
(A) 31
(B) 24
(C) 29
(D) 25
(E) 21
[CoT]: [The total of 15 numbers = 15X11 = 165
The total of first 7 and last 7 numbers is = 7 X 14+7 X 6 = 140
So, the middle number is (165 - 140 ) = 25]

Answer: (E)
Question:
Find the smallest number which should be multiplied with 560 to make it a perfect square.
Options:
(A) 60
(B) 55
(C) 45
(D) 25
(E) 35
[CoT]: [560 = 2*2*2*2*7*5
Required smallest number = 7 * 5 = 35
35 is the smallest number which should be multiplied with 560 to make it a perfect squar]