A pipe is divided in the ratio 3/7 :
2/5 : 3/4. Total length = 8 m. Find the largest piece.

Question

Accepted Answer

1. Clear denominators. Multiply each ratio by LCM 140 to get $60:56:105$. 
2. Add parts: $60+56+105=221$. The largest part is $105$ parts. 
3. Find its length: $8(105/221)=840/221\approx3.80$ m. 
4. So the largest piece is option (b).

FINAL_ANSWER: b

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Answer

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