Math, asked by sannisingh37, 1 year ago

surbhi sold his laptop to rinki at a loss of 28%. rinki spent Rs. 1680 on it's repairs and sold the laptop to nimisha for Rs. 35910 making a profit of 12.5%. find the cost of the laptop for surbhi.

Answers

Answered by lathamalathy

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sannisingh37: wo 18kaise hua bhai

lathamalathy: Mai ne bas 28 ko 100 see subtract kiye . Tho vo 72 hoga or 72 or 100 ko 4 se divide Karne par vo 18/25 hoga

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Answered by wifilethbridge

Answer:

Rs.4725000

Step-by-step explanation:

Let Cost price of laptop for surbhi be x

Loss % =28%

$SP = \frac{CP(100-L\%)}{100}$

$SP = \frac{x(100-28)}{100}$

$SP =0.72x$

So, CP for Rinki - 0.72x

Rinki spent Rs. 1680 on it's repairs

So,Total cost for Rinki = 0.72x+1680

Rinki sold the laptop to nimisha for Rs. 35910 making a profit of 12.5%.

$SP = \frac{CP(100+P\%)}{100}$

$35910 = \frac{0.72x+1680(100+12.5)}{100}$

$3591000 = 0.72x+1680(100+12.5)$

$x=4725000$

Hence the cost of the laptop for surbhi is Rs.4725000

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