Question

if three quintons of coal cost Rs 6000 what is the cost of 120 kg​

Answer 1

Given,

Total cost if three quintals of coal = Rs. 6000

To find,

The cost of 120 Kg of coal.

Solution,

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

On applying the unitary method, we get;

The total cost of 1 quintal, that is, 300 kilograms of coal = Rs. 6000

=> Total cost of 1 kilogram of coal

= Rs. (6000/300) = Rs. 20

=> Total cost of 120 kilograms of coal

= Rs. 20 x 120 = Rs. 2400

Hence, the total cost of 120 kilograms of coal is equal to Rs. 2400.

Answer 2

Answer:

The cost of 120 kg coal is $Rs 2400$

Step-by-step explanation:

In accordance with the information provided in the question,

Given the data in question cost of three quintal coal is

We have to find the cost of 120 kg coal

First calculate 1 quintal cost ,

cost of three quintal divided by three quintal

$\frac{6000}{3} \\Rs 2000$

So, cost of  1 quintal coal is $Rs 2000$

We know that 1 quintal = 100 kg

So, cost of 100 kg coal is $Rs 2000$

We calculate cost of 1 kg coal =

$\frac{2000}{100} \\Rs20$

Cost of 1 kg coal is $Rs 20$

Then cost of 120 kg coal is multiply of cost of 1 kg coal

$120\times 20\\Rs 2400$

Hence cost of 120 kg coal is $Rs 2400$