Question

a man purchased some eggs at 3 for rupees 5 and sold them at 5 for rupees 12 .he gained
rupees 143 in the whole transaction how many did he purchase

Answer 1

let the man purchased x eggs

CP of 3 eggs = 5

CP of 1 egg = 5/3

CP of x eggs = 5x/3

SP of 5 eggs = 12

SP of 1 egg = 12/5

SP of x eggs = 12x/5

profit = 12x/5 - 5x/3

=( 36x + 25x )/15

= 11x/15

ATQ

11x/15 = 143

x = 143 x 15/11

x = 13 x 15

x = 195
x =