passpadi

2006

Mathematics

JAMB

Simplify (25)-1/2 x (27)1/3+ (121)-1/2 x (625)-1/4

A.

34/55

B.

9/11

C.

14/5

D.

3/275

Correct Answer: 34/55

Explanation

25)-1/2 x (27)-1/3 + (121)-1/2 x (625)2-1/4 52x-1/2 x 33x1/3 + 112x-1/2 x 54x-1/4 5-1 x 31 x 11-1 x 5-1 1/5 x 3/1 + 1/11 x 1/5 3/5 + 1/5 = (33+1)/55 =34/55

25)-1/2 x (27)-1/3 + (121)-1/2 x (625)2-1/4 52x-1/2 x 33x1/3 + 112x-1/2 x 54x-1/4 5-1 x 31 x 11-1 x 5-1 1/5 x 3/1 + 1/11 x 1/5 3/5 + 1/5 = (33+1)/55 =34/55
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