Question
Sum of the present ages of A, B, C and D is 64 years.
After 4 years ratio of their ages is 6:5:3:2. What is C’s present age?Solution
At present sum of age = 64 years After 4 years sum of age will be, => 6x + 5x + 3x + 2x = 64 + 4 × 4 => 16x = 64 + 16 => x = 5 C’s present age = 3x – 4 = 11 years
50 62 ? 96 126 138
...89Â Â Â Â Â 78Â Â Â Â Â 74Â Â Â Â Â 67Â Â Â Â Â 63Â Â Â Â ?
4 6 ? 31 119 601
...Find the maximum number of trees which can be planted, 25 meters apart, on the two sides of a straight road 2125 meters long
55 46 60 41 65 36 ?
8 6 2 ? -1 9.5
...9999 6666 ? 2962.66 1975.11 1316. 74
...2, 17, 147, 1167, 8157, 48957
3,   2,   3,  8,  31,  ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
4 7 6
15 ? 21
44 68 60