Question

A grocer purchased 50 kg salt at the rate of rs 8 per kg and mixed it with 70kg salt purshased at the rate of rs 5 per kg. At what rate per kg must h
e sell the mixture make a profit of 20%?

Answer 1

Here cost of 50 kg salt = Rs 400 ( 1 kg = Rs. 8 )

cost of another 70 kg salt = Rs 350 ( 1 kg = Rs. 5)

Total cost = 400 + 350 = Rs. 750

Profit desired = 20%

∴ Profit = (20/100) × 750 = Rs.150

SP = CP + Profit

∴ SP of (50+70)kg Salt = 750 + 150 = Rs. 900

SP of 1 kg = 900/120 (Total SP/Toal quantity of salt)

SP of 1 kg Salt = Rs. 7.50

∴ To make a profit of 20% the salt should be sell for Rs. 7.50/kg

Answer 2

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