Question

pens were bought for 60 rs. per dozen and sold at 6rs. per pen. find gain or loss percent

Answer 1

C.P IS = 60 ÷ 12
= rs 5 per pen

S.P of one pen = Rs 6
" " 12 pen = 6×12
= 72
profits = 72 - 60
= 12
profits % = 12 × 100 ÷ cp
= 12 × 100 ÷ 60
= 1200÷ 60
= 20%