Question

alka spends 90% of the money that she receives every month ,and saves Rs.120 .how much money does she get monthly

Answer 1

Answer:

Let the amount she receives each month be 'x'

⇒ Spent amount ( Expenditure ) = 90% of x

⇒ Spent Amount = ( 90 / 100 ) × x = 0.9 x

Savings = Rs. 120

Total Amount she received = Savings + Expenditure

⇒ x = 0.9x + 120

⇒ x - 0.9x = 120

⇒ 0.1x = 120

⇒ x = 120 / 0.1

⇒ x = 1200 / 1 = Rs. 1200

Hence the amount she received each month is Rs. 1200.

Answer 2

hey,

let alka gets Rs. x monthly.

Since, she spends 90 ℅ of the money she receives.

so,money she saves =

$(100 - 90)\% = 10\%$

Thus,

$x \times 10\% = 120$

I.e.

$x \times \frac{10}{100} = 120$

Hence,

$x = 1200$

thus she gets Rs.1200 per month.

thanks

KSHITIJ