Question

unitary method :

1. If 6m of a uniform iron rods weighs 21 kg, what will be the weight of 16 m of the same rod ?

2. If the cost of 15 bananas is ₹84 how many bananas can be brought for ₹140 ?​

Answer 1

Given that 13 m weighs 23.4 kg

So, 1 m  will weigh 1323.4 kg

So, 6 m weighs 1323.4×6 kg =10.8 kg

Option C is correct.