Question

If 600 rupees buy 15 bunches of feed, how many will 1280 buy?

Answer 1

Hint: We will apply the unitary method first, we find the price of ‘1’ bunch of feed then the number of bunches we can purchase from 1280 rupees.

Complete step-by-step solution -
Explanation:
As given in question we can buy 15 bunches of feed in Rs.600.
So we can write in Rs. 600 and we can buy 15 bunches.
So in Rs. 1 we can buy ${\displaystyle \frac{15}{600}}={\displaystyle \frac{1}{40}}$
So in Rs. 1280 we can buy
$\Rightarrow {\displaystyle \frac{1}{40}}\times 1280$
$\Rightarrow 32$
So in Rs. 1280 we can buy 32 bunches of feed.

Note: By the unitary method, We are finding one unit then the required number of units. for simplification always write things to be calculated on the right-hand side and things which are known on the left-hand thing.