Question

On selling a chair for Rs. 720, a man loses 25%. To gain 25% it must be sold for

(a) Rs. 900

(b) Rs. 1200

(c) Rs. 1080

(d) Rs. 1440

Answer 1

Answer : (b)

SP of a chair = Rs. 720

Loss = 25 %

$\therefore$ CP of chair $=\frac{SP\times 100}{100-Loss\%}=Rs.\frac{720\times 100}{100-25}=Rs.\frac{720\times 100}{75}=Rs.960$

In second case,

Gain = 25 %

$\therefore SP=\frac{CP\times (100+gain\%)}{100}=\frac{960\times (100+25)}{100}=\frac{960\times 125}{100}=Rs.1200$