Question

if the cost of 5 2/5 litres of milk is ₹101 1/4, find its cost per litre​

Answer 1

Answer :

Given :

• The cost of $5\dfrac{2}{5}$ litre of milk is ₹ $101\dfrac{1}{4}$

Find :

• The cost of milk per litre.

Solution :

We have,

• The cost of $5\dfrac{2}{5}$ litre of milk = ₹ $101\dfrac{1}{4}$

Here,

• $5\dfrac{2}{5}$ = $\dfrac{27}{5}$
• $101\dfrac{1}{4}$ = $\dfrac{405}{4}$

So, similarly

The cost of 1 litre of milk is ,

= $101\dfrac{1}{4}$ ÷ $5\dfrac{2}{5}$

= $\dfrac{407}{4}$ ÷ $\dfrac{27}{5}$

= $\dfrac{\cancel{407}}{4}$ × $\dfrac{5}{\cancel{27}}$

= $\dfrac{15×5}{4}$

= $\dfrac{75}{4}$

•°• The cost of 1 litre if milk is 75/4.

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