Question

the price of fans was reduced by 20%
mber of fans sold is increased by 40%.
was the effect on the sales in rupees?
please tell in full explanation​

Answer 1

Step-by-step explanation:

Let the price of fan be 'x' and number of fans be 'y'

Sales of fan = x×y = xy

20% reduce in cost = (100-20)% = 80% of x =. 80x/100 = Rs 0.8x

40% of increase in selling = (100+40)% = 140% y = 140y/100 = 1.4y

News sales = 0.8x × 1.4y = 1.12xy

Increase sales = (1.12xy - xy) = 0.12xy

Profit % in sales = (0.12xy/xy)×100 = 12

Hence sales increase by 12%