Question

A man bought bananas at the rate of 10 for rupees 45 and sold at the rate of the dozen bananas for rupees 51 find his gain or loss percent

Answer 1

Solution :-

Cost of 10 bananas = Rs. 45

Cost of 1 banana = 45/10

= Rs. 4.5

Selling price of 12 bananas = Rs. 51

Selling price of 1 banana = 51/12

= Rs. 4.25

Loss = Cost price of 1 banana - Selling price of 1 banana

Loss = 4.5 - 4.25

Loss = Rs. 0.25

Loss percent = (Loss*100)/Cost price

⇒ (0.25*100)/4.5

⇒ 25/4.5

⇒ 5.55%

So, he suffered a loss of 5.55 %.

Answer 2

your answer-

cost of 10 bananas =45

cost of 1 banana=45/10=4.5


selling price of 12 bananas =51

selling price of 1 banana=51/12=4.25


He is having a loss

Loss = CP-SP

= 4.50-4.25

= 0.25


Loss%=loss×100/CP

=0.25×100/4.5

=25/4.5

=25×10/45

=250/45

=50/9

=5.55☺️☺️