Question
The income of P is 2/5th of the income of Q
and income of R is 60% more than the income of Q. Income of Q is Rs.15000 and expenditure of P is 20% of the expenditure of R. If R saves 25% of his income, then find the savings of P.Solution
Income of Q = Rs.15000 Income of P = 2/5 Γ 15000 = Rs.6000 Income of R = (160/100) Γ 15000 = Rs.24000 Savings of R = 24000 Γ (25/100) = Rs.6000 Expenditure of R = 24000 - 6000 = Rs.18000 Expenditure of P = (20/100) Γ 18000 = Rs.3600 Savings of P = 6000 - 3600 = Rs.2400
Relational Algebra is
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