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The sum of A, B, and C is 92 . If A : B = 5 : 7 and B : C = 3 : 8. Then find the value of C. 
1. 56
2. 27
3. 21
4. 15

1 Answer

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Best answer
Correct Answer - Option 1 : 56

GIVEN:
A + B + C = 92 

A :B = 5 : 7

B : C = 3 : 8

EXPLANATION:

A   :   B   :   C

5   :   7 →   7

3   ← 3   :   8

A : B : C = (5 × 3) : (7 × 3) : (7 × 8)

A : B : C = 15 : 21 : 56 

(A + B + C) = 15 + 21 + 56 = 92 ratio 

A.T.Q 

92 ratio = 92 

C = 56 ratio = 56

∴ C is 56 

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