Question
If 3 years is subtracted from the present age of R and
the remainder is divided by 9, then the present age of his grandson A is obtained. If A is 4 years younger than M whose age is 10 years, then what is the age of R?Solution
Mβs present age = 10 years Aβs present age = 10 β 4 = 6 years Let the present age of R be x Then, Aβs present age = (x -3)/9Β Now, according to question (x -3)/9 = 6 x = 54 + 3 x = 57 years
124, 186, 375, 930, 2790, 9765
10 3 7 6 40 310
...Β 44, 57, 81, 119, 170, 234, 311.
Find the wrong number in the given number series.
3, 8, 15, 24, 35, 50, 63
In each of the following number series, one term is wrong. Find the WRONG term.
2, 6, 18, 54, 164, 486
164, 141, 122, 105, 92, 80
2, 6, 44, 462, 6930, 131670
1, 4, 20, 126, 1026, 10170
Find the wrong number in the given number series.
22, 29, 50, 89, 134, 197
Find the wrong number in the given number series.
2, 3, 5, 8, 13, 22, 34