Question
Sum of the present ages of A, B, C and D is 70 years.
After 5 years ratio of their ages is 5:4:3:3. What is C’s present age?Solution
At present sum of age = 70 years After 5 years sum of age will be, => 5x + 4x + 3x + 3x = 70 + 5 × 4 => 15x = 70 + 20 => x = 90/15 => x = 6 C’s present age = 3x – 5 = 13 years
1Â Â Â Â 2Â Â Â Â Â 11Â Â Â Â Â 36Â Â Â Â Â Â 85Â Â Â Â Â Â ?
...5                             6                             14              �...
1Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
15Â Â Â Â Â Â Â Â Â Â Â Â 13 Â Â Â Â Â Â Â Â 28 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24 Â Â Â Â Â Â Â Â Â Â Â Â Â Â 54 Â Â Â Â Â Â Â Â 52
...5, 11, 19, 29, 41, ?
48   50   54   57   ?   70
1 2 9 ? 65 126
...7 13 15 29 31 57
...5468, 2734, 1367, 683.5, 341.75, ?
9 10 6 15 -1 ?
...
