If john works for 5 days, he will get rupees 350. How much will he get, if he work for 20 days?

Given:

If John works for 5 days, he will get rupees 350.

To find: We need to calculate how much he will get if he works for 20 days.

Solution:

Money earned by john after working for 5 days = ₹ 350

We have to find the money earned by john after working for 20 days.

Now,

Money earned by john after working for 1 day = $₹\ \frac{350}{5} \ =\ ₹\ 70$

Therefore,

Money earned by john after working for 20 days = $₹\ 70\ \times \ 20\ =\ ₹\ 1400$

So, John will get ₹ 1400, if he works for 20 days.