Question
The average of two consecutive even numbers is 85. If
the smaller number is increased by 20% and the larger number is decreased by 20%, then find the difference between the numbers obtaineSolution
Let the two consecutive even numbers be x and x + 2.
ATQ,
(x + x + 2)/2 = 85 => x + 1 = 85 => x = 84
Required difference = 1.2 × 84 - 0.8 × 86 = 100.8 - 68.8 = 32
What value should come in the place of (?) in the following number series?
5670, 1620, 540, 216, 108, ?
What will come in place of the question mark (?) in the following series?
15, 90, 450, ?, 5400, 10800Â
4, 9, 24, 69, ?, 609
What will come in place of (?) question mark in the given number series.
12, 27, 44, 65, ?, 139
11    16    42    141    ?   2945   17700
...18   29   16   31   ?   33
In each of the following number series, one term is missing. Find the missing term.
5, 7, 12, 22, 39, 65, ?
What will come in place of the question mark (?) in the following series?
72, 108, 172, ?, 416, 612
254, ?, 1022, 1150, 1214, 1246
5, 6, 14, 45, ?, 925
