Question

11.
When the price of a product was decreased by 10%, its consumption increased by 30%. The
effect on the total revenue is:
(A) 17%
(B) 18%
(C) 19%
(D) 20%

Please answer it really quick

Answer 1

Answer:

d.

i don't think it's right

Answer 2

Answer:

answer 17%

let the price is 100

decrease 10%= 100× 90/100 =10

remaining amount is 100-10=90

next increase 30% =90×130/100=117

effect on the total is= 117-100=17%