Question
Ten years ago, the average age of A and B was 12 years.
The average age of A, B and C now is 22 years. What will be C’s age after 20 years?Solution
Sum of present ages of A, B and C = 22 × 3 = 66 years
Sum of present ages of A and B = 12 × 2 + 20 = 44 years
Present age of C = 66 – 44 = 22 years
Desired age = 22 + 20 = 42 years
Find the Wrong number in the given number series.
2024, 1583, 1193, 822, 498, 209Find the wrong number in the given number series.
1000, 500, 250, 120, 62.535, 44, 28, 53, 19, 66
Find the wrong number in the given number series.
26, 38, 60, 110, 206, 398
Find the wrong number in the given number series.
17, 36, 73, 134, 220, 352Â
120, 160, 220, 300, 400, 560
In each of the following number series, one term is wrong. Find the wrong term.
18, 16, 48, 46, 138, 140, 408
1 Â Â Â Â Â Â 3 Â Â Â Â Â Â 7 Â Â Â Â Â Â Â 15 Â Â Â Â Â Â Â 33
...Find the wrong no in the given number series.
11, 18, 32, 60, 112, 228
15, 30, 30, 20, 10, 8
Relevant for Exams:
