Question
The respective ratio of monthly income of A to monthly
income of B is 12:13, and A’s saving is (100/19)% more than B’s saving. Find the expenditure of A, if the sum of monthly income of A and B is Rs. 50000, and expenditure of B is Rs. 7000.Solution
Let monthly income of A and B be 12x and 13x, respectively. Then, 12x + 13x = 50000 25x = 50000, x = 2000 A’s monthly income = 12x = Rs. 24000 B’s monthly income = 13x = Rs. 26000 Given, expenditure of B = Rs. 7000 So, B’s saving = 26000 – 7000 = Rs. 19000 Then, A’s saving = 19000 + (1/19) × 19000 = 19000 + 1000 = Rs. 20000 A’s expenditure = 24000 – 20000 = Rs. 4000
(750 / 15 × 15 + 152 + 20% of 125) = ?3
26 2 – 13% of 400 + (529 ÷ 23 2 ) = ? 2
104 × 21 ÷ 13 + ? % of 300 = 320 + 22
84% of 800 + 70% of 640 = 14 × ?
26% of 650 + 15% of 660 – 26% of 450 = ?
9/5 × 18/25 ÷ 42/21 = ? - 82/75
What will come in the place of question mark (?) in the given expression?
48 X 2.5 + 20% of 150 = ? + 166
18 × √225 + 378 ÷ √441 = ? × 9
3.2% of 500 × 2.4% of ? = 288
What will come in place of the question mark (?) in the following expression?
18 × 16 – 11 × 4 = 15² + ?
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