Question

A potato seller sells 70percent of the total potatoes and still has 150 kg potatoes left with him.find the weight of potatoes he had originally.

Answer 1

if 100x is the amount of total potatoes then 100x-70x=150
or 30x=150
or x=5
therefore total number of potatoes= 100*x
100*5= 500 potatoes

Answer 2

$\huge\bold\purple{Solution}$

30% =150 kg

let the total weight be x

30% of x =150 kg

$\frac{30}{100} \times x = 150$

$x = 150 \times \frac{10}{3}$

$x = 50 \times 10$

$x = 500kg$