Question

A fruit seller sold 0.25 of his lemons to
the first customer and 0.5 of the remaining
to the second customer. If he had 30
lemons left still, how many lemons did he
have originally?​

Answer 1

Step-by-step explanation:

let total is x

then

0.25x + 0.50*(0.75x) + 30 = x

0.25x + 0.375x + 30 = x

x- 0.625x = 30

0.375x = 30

x = 30/0.375 = 80

verification

total 80

sold to first = 0.25 * 80 = 20

sold to second = 0.50 * 0.75* 80 = 30

so remaining is 80-(20+30) = 30