Question
Out of his total income, Suresh spent 25% on groceries,
15% on transport and 20% on house rent. If he spent 25% of the remaining on entertainment and saved the rest which is Rs. 900, then find his total income.Solution
Let total income of Suresh be Rs. '100x' So, amount left after he spent part of it on groceries, transport and rent = 100x - (0.25 + 0.15 + 0.20) X 100x = Rs. '40x' So, 0.75 X 40x = 900 Or, x = (900/30) = 30 So, total income of Suresh = 100x = 100 X 30 = Rs. 3,000 Hence, option b.
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