Question

a man spends 1/3 of his income on house rent , 1/5 on education of his child , 3/10 on food and rs 5000 saved. find his income

Answer 1

Find the percentage of his income saved:

1 - 1/3 - 1/5 - 3/10 = 1/6

Find his income:

1/6 of his income = Rs 5000

6/6 of his income = 5000 x 6 = Rs 30,000

Answer: his income is Rs 30,000

Answer 2

Let his income is x.
He spends x/3on rent
x/5 on education
3x/10 on food.

Then rest money =5000

According to question..
x- x/3 -x/5 -3x/10=5000
x{1-1/3-1/5-3/10}=5000

x{30-10-6-9}/30=5000
5x=5000×30
x=30000