Question
Monthly income of A is Rs. 9000 and he saves 30% of his
monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is increased by 35% then find the increase or decrease in his monthly income.Solution
Monthly savings and expenditure of A initially is Rs. 2700 and Rs. 6300, respectively. Monthly expenditure of A now = 0.65 × 6300 = Rs. 4095 Monthly savings of A now = 1.35 × 2700 = Rs. 3645 Monthly income of A now = 4095 + 3645= Rs. 7740 Desired percentage decrease = [(9000 – 7740)/9000] × 100 = 14%
If 10 9 38 x 5428
Then, 2x² + 1 = ?
...If 20 x 46 147 604 3045
Then, x% of 25 = ?
...3601 3602 1803 604 154 36
...62 90 122 158 198 ?
127 470 254 ? 315 342
...5 11 32 65 ? 389
...Select the number from among the given options that can replace the question mark (?) in the following series.
2, 6, 12, 20, ?, ?
11Â Â Â 46Â Â Â 109Â Â Â 208Â Â Â Â 351Â Â Â Â ?
12 7 10 25 107 ?
...324 322 640 1914 7648 ? 229368
...