Question

alka spend 90% of the money that she receives every month and saves 120rs .how much money does she get monthly?

Answer 1

let the total money be x

now money she spends = 90x/100

money she saves = 120

NOW

90x/100 + 120 = x

x - 90x/100 = 120

10x/100 = 120

x = 120 x 100/10

x = 1200

she earns 1200

Answer 2

Answer:

Rs 1200

Step-by-step explanation:

90% of amount she spends  of her monthly income.

10% she saves

her income be X

∴ 10/100 × x=120

∴x=120×100/10

x=12×100=1200

Rs 1200.

∴Her monthly income is Rs 1200.