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

1.	If Rs 600 buy 15 bunches of feed, how many will Rs 1280 buy?
Answer» Let the bunches of feed bought for Rs 1280 be x. The quantity of feed bought and their cost are in direct proportion. ∴ \(\frac{600}{15} = \frac{1280}{x}\) ∴ 600x = 1280 × 15 …. (Multiplying both sides by 15x) ∴ \(x = \frac{1280 \times 15}{600} = 32\) ∴ 32 bunches of feed can be bought for Rs 1280.

Answer»

Let the bunches of feed bought for Rs 1280 be x. The quantity of feed bought and their cost are in direct proportion.

∴ \(\frac{600}{15} = \frac{1280}{x}\)

∴ 600x = 1280 × 15 …. (Multiplying both sides by 15x)

∴ \(x = \frac{1280 \times 15}{600} = 32\)

∴ 32 bunches of feed can be bought for Rs 1280.

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