We can’t make out when was the building constructed. We also don’t know if the alumni had not visited the school in the interim, hence both assumptions are not implicit and option 4 is the correct answer.
In each of the following giving number series, a wrong number is given. Find out the wrong number?
82, 81, 86, 110, 168, 287
18 45 90 235 450 1125 2250
...9 20 63 255 1285 7716
...Direction: Find the wrong number in given number series.
3216, 3255, 3320, 3411, 3538, 3671
32, 50, 82, 124, 180, 252
6, 22, 76, 314, 1580, 9600
24, 41, 58, 75, 94, 109
1000, 200, 56, 24, 12, 7.2
17, 21, 48, 64, 170
1, 2, 8, 48, 386, 3840