book Maths Puzzle Numerical Ability

7. Evaluate 3/4 times 6 /7and reduce to simplest form.

A) 18/28 B) 1 C) 3/7 D) 9/14

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book Other Question

a^2m * b^m+1 over a^m *b i need to simplify this. i know a^2m simlifies to a^m but i dont know what b^m+1 over b would simlify to? If 8x+5x+2x+4x=114, then 5x+3=?

a)12
b)25
c)33
d)47
e)46