Question

sahil purchased an iron almirah for Rs 5200 and paid RS 180 for its transportation. He also spent Rs 120 or painting and then sold it at a gain of 10% find the amount for which he sold the almirah if the selling price of 16 watches is equal to the cost price of 17 watches, find the gain percent.

Answer 1

Total C.P of Amirah$=5200+180+120=5500$

Gain $\%=\frac{S.P-C.P}{C.P}\times 100$

$\Rightarrow 10=\frac{S.P-5500}{5500}\times 100$

$\Rightarrow S.P=\frac{11}{10}\times 5500=6050$

Similarly for watches.

Gain$\%=\frac{S.P-C.P}{C.P}\times 100=(\frac{S.P}{C.P}-1)100=(\frac{17}{16}-1)100$

$=\frac{100}{16}=6.25\%$.