A uniform iron bar of length 7 m weighs 22.4 kg. How much does the same bar of length 13 m weigh ?
Ratio Proportion
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Question

A uniform iron bar of length 7 m weighs 22.4 kg. How much does the same bar of length 13 m weigh ?

KnowledgeBoat · Accepted Answer

Given: Weight of 7 m iron bar = 22.4 kg Weight of 13 m iron bar = ? Let the weight of 13 m iron bar = x kg Ratio of lengths : Ratio of weights 7 : 13 :: 22.4 : x By the rule: Product of Extremes = Product of Means: 7 × x = 13 × 22.4 ⇒ x = ⇒ x = 13 x 3.2 ⇒ x = 41.6 Hence, the bar of length 13 m weighs 41.6 kg.

Mathematics

A uniform iron bar of length 7 m weighs 22.4 kg. How much does the same bar of length 13 m weigh ?

Ratio Proportion

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