Question

The weight of a $13$ m long iron rod is $23.4$ kg. The weight of $6$ m long of such rod will be _______.

• A. $7.2$ kg
• B. $12.4$ kg
• C. $10.8$ kg
• D. $18$ kg

Answer 1

Answer: (C)

$10.8$ kg

Given that $13$ m weighs $23.4$ kg

So, $1$ m will weigh $\frac{23.4}{13}$ kg

So, $6$ m weighs $\frac{23.4}{13}\times 6$ kg $=10.8$ kg

Option C is correct.