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Alka Spends 90 % of the Amount Sent to Her and Saves Rs. 120 per Month. Find the Amount Sent to Her per Month. - Algebra

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Alka spends 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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Solution

Suppose, the amount sent to Alka every month is x. She spends 90% of it.
∴ She saves 10 % of the amount, which is Rs 120
`∴ 120 = x ×10/100`
∴ 120 × 10 = x
∴ x = 1200
∴ Amount sent to Alka every month is RS  1200.

Concept: Inconsistency of Pair of Linear Equations
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