Prem sold a transistor to sudhir at a gain of $10 %$ and sudhir sold it to Hari at a gain of $15 %$ . Prem has bought it for $R s 500$ , what did it cost to Hari?

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Solution

Cost price of frem $= R s . 500$
Gain $%$ of frem $= 10 % \Rightarrow$ Gain $= R s . (\frac{10}{100} \times 500) = R s . 50$
$∴$ Seling price $= R s . 550 =$ Cost price of Sudhir.

Gain of Sudhir $= R s . (\frac{15}{100} \times 550) = R s . 82.50$
$∴$ Selling price of Sudhir $= R s . (82.50 + 550 = R s . 632.50)$
which is the cost price of Hari.

Ans: Cost price of Hari is $R s . 632.50$

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Prem sold a transistor to sudhir at a gain of 10% and sudhir sold it to Hari at a gain of 15%. Prem has bought it for Rs 500, what did it cost to Hari?

Cost price of frem =Rs. 500Gain % of frem =10% ⇒Gain =Rs. (10100×500)=Rs. 50∴ Seling price =Rs. 550=Cost price of Sudhir.Gain of Sudhir =Rs. (15100×550)=Rs. 82.50∴ Selling price of Sudhir =Rs. (82.50+550=Rs. 632.50)which is the cost price of Hari.Ans: Cost price of Hari is Rs. 632.50

Prem sold a transistor to sudhir at a gain of $10 %$ and sudhir sold it to Hari at a gain of $15 %$ . Prem has bought it for $R s 500$ , what did it cost to Hari?