1.

By selling 60 kg of sugar for Rs. 690 the cost price of 9 kg of sugar is gained. Find the gain percent and cp of of the sugar per kg​

Answer»

Answer:

C.P =  ₹ 600

Profit = ₹ 90

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Step-by-step explanation:

LET C.P of 60 kg Sugar = x

∴ C.P of 1 kg sugar = \frac{x}{60}

S.P of 60 kg Sugar = 690

Profit = C.P of 9 kg of Sugar

⇒ \frac{x*9}{60}

Profit = S.P - C.P

⇒ 690 - x

Equating Both :-

690 - x = \frac{x*9}{60}

⇒ 60 × (690 - x) = 9x

⇒  41400 - 60x = 9x

⇒ 41400 = 69x

⇒ x = 41400/69

⇒ x = 600

∴ C.P  of 60kg sugar= ₹ 600

C.P of 1 kg sugar = 600/60 = 10

Profit = C.P of 9kg of sugar = 9 × 10 = ₹ 90


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