Question

A man sold 2 watches at Rs. 240 each, on one he gained 7% and on the other he loss 7%. Find the gain or loss in the transaction.​

Answer 1

Given:-

• A man sold 2 watches at Rs. 240 each, on one he gained 7% and on the other he loss 7%.

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To find:-

• The gain or loss in the transaction.

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Solution:-

According to the question,

Firstly,

• Finding the cost price of first watch, that he gained 7%.

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We know that,

⇛ CP = SP × 100/100 + profit.

⇛ CP = 240 × 100/100 + 7

⇛ CP = 24000/107

⇛ CP = 224.29

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Then,

• Finding the cost price of another watch , that he lost 7%.

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⇛ CP = SP × 100 /100-7

⇛ CP = 240 × 100/93

⇛ CP = 24000/93

⇛ CP = 258.06

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Now,

• Finding Gain in the transaction.

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⇛ SP - CP

⇛ 240 - 224.29

⇛ Gain = 15.71

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Hence,

• the gain is 15.71.

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Now,

• Finding the loss in the transaction.

⇛ SP - CP

⇛ 240 - 258.06

⇛ Loss = 18.6

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Hence,

• the loss is 18.6.