At present sum of age = 55 years After 5 years sum of age will be, => 5x + 4x + 3x + 3x = 55 + 5 × 4 => 15x = 55 + 20 => x = 75/15 => x = 5 C’s present age = 3x – 5 = 10 years
168, 164, 155, 139, ?, 78
324 972 486 1458 729 ?
...32 48 96 ? 720 2520
8 12 30 105 ? 2598.75
...18, 54, ? , 1890, 17010, 187110
660, 653, 639, 618, 590, ?
16, 16, 32, 96, ?, 1920
What will come in place of the question mark (?) in the following series?
2, 5, 14, 41, 122, 365, ?
64, 256, 128, 512, 256, ?
45, 58, 84, 123, ?, 240
