Question

The price of Coal being increased by 20%
I reduce the consumption of Coal by 20 %. By what percent will my expenses for coal be increased or decreased.​

Answer 1

Answer:

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Step-by-step explanation:

CP of coal = Rs x per kg

Quantity of coal consumed = m kg

Expenditure on coal = Rs mx

Increased CP of coal = Rs 1•2x

Increased over head expenditure = Rs 1•2mx

Let the reduced consumption of coal = m1 kg

Such that 1•2m1x = Mx

Or m1 = m/1•2

Reduction in consumption = m - m1 = 0•2m/1•2

Percentage reduction = 2/12*100 = 50/3 = 16•67%

Answer 2

Answer:

The ans is 4% decrease.

Step-by-step explanation:

The ans is above.

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