The ratio of working efficiency of A and B is 5 : 3 and the ratio of efficiency of B and C is 5 : 8.
Posted on 02-02-2023
Ques - The ratio of working efficiency of A and B is 5 : 3 and the ratio of efficiency of B and C is 5 : 8 . Who is the most efficient?
(a) A
(b) B
(c) C
(d) Can't determined
Solution -
The ratio of efficiency of A : B = 5 : 3
THe ratio of efficiency of B : C = 5 : 8
Here,
B appeared in both ratio, so we make them the same.
Ratio of A : B = 5 : 3
Multiply by 5,
Ratio of A : B = 5 (5 : 3)
= 25 : 15
And,
Ratio of B : C = 5 : 8
Multiply by 3,
Ratio of B : C = 3 (5 : 8)
= 15 : 24
Thus,
Ratio of A : B : C = 25 : 15 : 24
Therefore,
The most efficient is A.
Hence,
THe correct answer is option (a) A.
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