Two numbers A and B
are such that the sum of
7% of A and 6% of B
is three-fourth of the
sum of 5% of A and 11%
of B. Find the ratio of A:
B.
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Answer:
Explanation:
5% of A + 4% of B = 2 (6% of A + 8% of B)
3
5 A + 4 B = 2 6 A + 8 B
100 100 3 100 100
1 A + 1 B = 1 A + 4 B
20 25 25 75
1 - 1 A = 4 - 1 B
20 25 75 25
1 A = 1 B
100 75
A = 100 = 4 .
B 75 3
Required ratio = 4 : 3
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