19) A is 50% more than B and C is 20% more than B. if the difference between A and C is 120, find B?
a) 200 b) 500
c) 750
d) 450 e) none of these
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Answer:
A = 50 / 100 B + B
C = 20 / 100 B + B
A - C = 120
50 / 100 B + B = 20 / 100 B + B
30 / 100 B =
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