Question 51

The cost of 15 kg of groundnuts and 4 kg of cashews is Rs. 7,000. The cost of 10 kg of cashews is equal to 25 kg of groundnuts. Find the cost of groundnut per kg.

Solution

Let 1 kg of groundnuts cost x and 1 kg of cashew cost y

10y = 25x

y = 2.5x -------I

15x + 4y = 7000 -----II

Putting I in II

15x + 10x = 7000

25x = 7000

x = Rs 280.

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