Question

If 12m of a uniform iron rod weight 42kg. What will be the weight of 6m of same rod?

Answer 1

Answer:

21 kg

Step-by-step explanation:

42 =12 m

1m =42/12

1m =3.5 kg

so

6m= 3.5x6

6m = 21 kg

so 6m rod having 21 kg

Answer 2

Given,

12 m of a uniform iron rod weighs 42 Kg.

To find,

The weight of 6 m of the same rod.

Solution,

We can simply solve this mathematical problem using the following process:

According to the question and applying unitary method, we get;

12 m of a uniform iron rod weighs 42 Kg

=> 1 m of a uniform iron rod weighs (42/12) Kg

=> 6 m of a uniform iron rod weighs (42/12 × 6) Kg, that is, 21 Kg

Hence, the weight of 6 m of the same rod is equal to 21 kg.