Question
The income ratio of Aman to Qureshi is 5:7. Both
individuals save ₹900 each. If the ratio of their expenditures is 7:11, determine Qureshi's total expenditure.Solution
Let the income of ‘Aman’ and ‘Qureshi’ be Rs. ‘5x’ and Rs. ‘7x’, respectively. ATQ, {(5x – 900):(7x – 900)} = 7:11 Or, (55x – 9900) = (49x – 6300) Or, 6x = 3600 So, x = 600 Expenditure of ‘Qureshi’ = 7x – 900 = {(600 × 7) – 900} = Rs. 3,300
Select the option in which the numbers are related in the same way as are the numbers of the following set.
(25, 18, 225)
32 96 240 480 720 ?
5 3 3 5 15 ?
362 284 393 451 144 221
...105 107 111 114 ? 127
7 29 ? 129 211 349
5, 8, 17, ?, 37, 48
200 ? 96 38.4 7.68 0
...7, 8, 12, 21, 37, ?
21, 37, 62, 98, 147, ?