Question
The respective ratio of monthly income of A to monthly
income of B is 8:9, and A’s saving is (100/9) % more than B’s saving. Find the expenditure of A, if the sum of monthly income of A and B is Rs. 68000, and expenditure of B is Rs. 18000.Solution
Let monthly income of A and B be 8x and 9x, respectively. Then, 8x + 9x = 68000 17x = 68000, x = 4000 A’s monthly income = 8x = Rs. 32000 B’s monthly income = 9x = Rs. 36000 Given, expenditure of B = Rs. 18000 So, B’s saving = 36000 – 18000 = Rs. 18000 Then, A’s saving = 18000 + (1/9) × 18000 = 18000 + 2000 = Rs. 20000 A’s expenditure = 32000 – 20000 = Rs. 12000
What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)...
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
{26.11 x 13.96 - (346.95 - 26.04 x 4.18)} = ?
5 (1/2)% of 3599.67 + {18.11% of 2499.67} + √255.11 - 10% of 1799.99 - (63.01 – 47.08) = ?
47.87% of 749.76 + 35.11% of 399.76 = √? + 23.15 × 20.87
? = 38.97² ÷ (3.99⁵ + 5.89 × 107.32) + 58.24% of (512.12 × 21.07)
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
84.8% of (680.3 + 12.5 of 8.2) – 22.1 of √9 = ?
3.98 × 29.67 ÷ 11.90 of √24.89 = ?% of 199.79
30.11% of 149.99 + √ 143.97 ÷ 12.02 = ?
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