Question

a worker earns rupees 490 in 7 days. how much he will earn in 30 days? In how many days he will earn rupees 8400​

Answer 1

In 30 days he earns 490÷7×30

He will earn RS 8400 in (8400×7)÷490 days

Answer 2

He will earn Rs.2100 in 30 days and he will earn 8400 rupees in 120 days

Step-by-step explanation:

A worker earns in 7 days = Rs.490

A worker earns in 1 day =$\frac{490}{7}$

A worker earns in 1 day =Rs.70

A worker earns in 30 days =$70 \times 30=2100$

A worker earns 490 rupees in days = 7

A worker earns 1 rupee in days = $\frac{7}{490}$

A worker earns 8400 rupees in days = $\frac{7}{490} \times 8400=120$

So, He will earn Rs.2100 in 30 days and he will earn 8400 rupees in 120 days

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