3.
A and B started a partnership business investing some amount in the ratio
of 3 : 5. C joined them after six months
with an amount equal to that of B. In what proportion should the profit at the
end of one year be distributed among A, B and C ?
[A]
3 : 5 : 2
[C]
6 : 10 : 5
[E]
None of these
[B]
3 : 5 : 5
[D]
Data inadequate
Answer : [C]
Explanation :
Let
the initial investments of A and B be 3x and 5x.
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A :
B : C = (3x x 12) : (5x x 12) : (5x x 6)
= 36 : 60 : 30 = 6 : 10 : 5.
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