Question

IB exams

Murali purchased 20 dozens of toys at the rate of Rs. 375 per dozen. He sold each one of them at the rate of Rs. 33. Find out his profit percentage?

Answer 1

Given, 1dz=Rs 375
Therefore, 20 dz= 20 * 375= Rs 7500---------(CP)
Now, each toy is sold for Rs 33
1 dz = 12 toys
Then, 20 dz= 20*12=240 toys
So, total SP, 240*33= Rs 7920--------------(SP)
Now, Profit % (P%)= [P/CP] *100
[(SP-CP)/CP] *100
[(7920-7500)/7500] *100
(420/100)*100
=5.6% profit

Answer 2

number of toys purchased = 20 dozens
                                       = (20 *12 ) toys
                                       = 240 toys.
cost price  of 12 toys = Rs. 375
therefore , cost price of 1 toy = Rs. 31.25
therefore , cost price of 240 toys = 240 * 31.25
                                                = Rs. 7500
selling price of 1 toy = Rs. 33
therefore , selling price of 240 toys = 240 * 33
                                                   = Rs. 7920
profit made = selling price - cost price 
                 = Rs. (7920 - 7500)
                 = Rs. 420
therefore , profit percent = (profit / cost price) * 100
                                   = (420 / 7500 ) * 100
                                   = 5.6 %
ANS) the profit is 5.6 %.