Question
X men can complete the piece of work in 32 days and (X +
30) men can complete the same work in 15 days less than that of days taken by X men. Find the value of X.Solution
According to question, => X × 32 = (X + 30) × 17 => 32X = 17X + 510 => 15X = 510 => X = 34
31, 60, 118, 234, 466, ?
17 , 37 , 79 , 165 , ? , 689
166    156    136   ?     66    16
Find the missing character.Â
-1, 5, 23, 59, ?
7, 9, 21, ?, 107, 197
12, 18, 30, 54, ?, 198
What will come in place of (?) Question mark in the given number series.
1, 2, 5, 14, 41, 122, ?
17    18      14       ?      7       32
...What will come in place of the question mark (?) in the following series?
12, 13, 22, 47, 96, 177, ?