Question

ten pencil cost 50 rupees and shopkeeper loss 10% find the price one pencil cost

Answer 1

Here we go ....

.....STEP BY STEP......

10 pencils = Rs 50.

THEREFORE .....

$10\% \: of \: Rs \: 50 \: is \: \\ \\ = \frac{10}{100} \times 50 \\ \\ = 5 \\ \\ Now \: the \: cost \: of \: 10 \: pencil \: is \: 50 - 5 = 45 \\ \\ So..cost \: of \: 1 \: pencil \: = \frac{45}{10} \\ \\ \frac{45}{10} =Rs 4.5 \\ \\ Hence \: the \: cost \: of \: 1 \: pencil \: is \: Rs \: 4.5 \\ \\ Thnx.....$