Question

Buys pencil rupees 250 per hundred and sells each at rupees 1.75 find his loss or profit

Answer 1

for 250 pencil he pays 100rp

this shows that one pencil = 100/250

this is = 0.4rp

he then sells for 1.75...

to get profit = 1.75-0.4 = 1.35

then to get profit = 1.35*100 =135rp