Question
Avni’s present age is 4 times of Pooja’s
age. The sum of the present ages of Avni, Pooja and Avni’s brother is 178 yrs. Avni’s brother’s present age is 11/9 that of Avni. What is the difference between Pooja’s present and Avni’s brother’s present age?Solution
Let Avni’s age be x yrs. x + 11/9 x + x/4 = 178 89/36 x = 178 x = 72 yrs. Pooja’s present age = 72/4 = 18 yrs Avni’s brother’s present age = 72 × 11/9 = 88 yrs ∴ Required difference = 88 – 18 = 70 yrs.
230 192 172 ? 122 100
...What value should come in the place of (?) in the following number series?
64, 80, 104, ?, 176, 224
97, 106, ?, 195, 411, 460
What will come in place of the question mark (?) in the following series?
29, 42, ?, 95, 135, 184
Find the missing term:
2, 6, 15, 31, 56, ?
32   48   96   ?   720   2520
82, 98, 130, 178, 242, ?
4 10 ? 62.5 156.25 390.625
...140, 146, 170, 224, ?, 470
7 47 ? 223 359 527
...