Alice's stamp collection was 75% of the size of raymond's. after alice sold 40% of her stamps and raymond sold 20% of his stamps, alice had 140 fewer stamps than raymond. how many stamps did alice sell?

Raymond's stamp collection ➞x
Alice′s stamp collection➞75%x
75%x-40%×75%x+140=x-20%x
75%x-30%x+140=80%x
45%x+140=80%x
140=80%x-45%x
x=400
Raymond′s stamp collection ➞400
Alice′s stamp collection➞300
Alice sold 300×40%=120
120

Answer:

13.46

step-by-step explanation:

16.80 x .20 = 13.46