alka spend 90% of the amount sent to her and saves Rs 120 per month . Find the amount sent to her per month
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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
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Answer:
Suppose alka gets Rs .x per month
She spends 90% of Rs. x
She spends 90/100 × x = Rs. 9x/10
Savings= earning - expenditure
120 = x- 9x/10
120 ×10 = 10x-9x ...... multiplying both the sides by 10
1200 =x
Alka gets Rs. 1200 per month
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