Question
Monthly income of A is Rs. 6500 and he saves 36% 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
Given Data: Monthly Income = Rs. 6500 Savings (36%) = Rs. 2340 Expenditure = Rs. 4160 (Income - Savings) Changes: Expenditure decreased by 35% → New Expenditure = 4160 - 35% of 4160 = Rs. 2704 Savings increased by 35% → New Savings = 2340 + 35% of 2340 = Rs. 3159 New Income: New Income=New Expenditure + New Savings = 2704+3159=5863 Change in Income: Change Change=5863−6500=−637 Income decreased by Rs. 637.
In each of the following questions, a number series is given. After the series a number is given followed by (a), (b), (c), (d) and (e). You have to com...
Choose the correct alternative
21: 3 ∷ 574: ?
8, 7, 12, 35, 128, 635
9 16 56 318 2424 25070
...100Â Â Â 180Â Â Â 294Â Â Â 448Â Â Â 648Â Â Â ?
6 2 8 ? 84 416
...5 11 32 65 ? 389
...If 10 9 38 x 5428
Then, 2x² + 1 = ?
...412, 537, 573, 916, 980, ?
24, 33, 50, ?, 108, 149
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