| The average weight of three brothers is 68 kg. If their weights are in the ratio 3 : 4 : 5, the weight of the heaviest of the three brothers is |
A) 85 kg
B) 70 kg
C) 90 kg
D) 82 kg
Correct Answer: A
Solution :
| Total weight of three persons \[=68\times 3=204\] |
| Ratio of weight of three person are \[3:4:5.\] |
| Weight of heaviest person \[=\frac{5}{(3+4+5)}\times 204\] |
| \[=\frac{5}{12}\times 204=5\times 17=85\,\,kg\] |
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