Scott's average (arithmetic mean) golf score on his first four rounds was 58.What score does he need on his fifth round to drop his average score by 2 points?
Options:
(A) 48
(B) 72
(C) 78
(D) 88
(E) 312

Average score for first 4 rounds = 58
Average score after 5 rounds = 56
Score Scott needs on his 5th round to drop average score by 2 points = 58 - (2*5) = 48 So the answer is: (A).

The area of a triangle is with base 18m and height 6m?
Options:
(A) 88 m2
(B) 10 m2
(C) 66 m2
(D) 54 m2
(E) 31 m2

1/2 * 18 * 6 = 54 m2 So the answer is: (D).

John has 10pairs of dark blue socks and 10pairs of black socks. He keeps them all in the same bag. If he picks out 3socks at random, then what is the probability thathe will get a matching pair?
Options:
(A) 1
(B) 3
(C) 5
(D) 8
(E) 9

If he draws any combination of 3 socks he will definitely have the matching pair of either colour. So the answer is: (A).

Find 96 98
Options:
(A) 92/8
(B) 92/12
(C) 92/13
(D) 92/10
(E) 92/11
Here both numbers are less than 100. So they are deficient of - 4 and - 2 compared with 100. So So the answer is: (A).