Question
A town had 30,000 people in 2010. In 2011, the population
rose by 25%, dropped by 20% in 2012, and rose again by 10% in 2013. Find the population at the end of 2013.Solution
ATQ,
Population in 2011 = 1.25 × 30000 = 37500
Population in 2012 = 0.80 × 37500 = 30000
Population in 2013 = 1.10 × 30000 = 33000
58   83   133   ?    308    433
60, 100, 160, 240, ?, 460
In each of the following number series, one term is missing. Find the missing term.
7, 14, 28, 56, 112, ?
12, 19, 33, ?, 117
4, 12, 36, 108, ?, 396
945, 1890, ?, 504, 144, 32
What will come in place of the question mark (?) in the following series?
11, 13, 19, ?, 51, 81
Find the missing number, in the given number series.
60, 150, ?, 450, 450, 225
31Â Â Â 40Â Â Â 51Â Â Â 64Â Â Â 79Â Â Â Â ?
- What will come in place of the question mark (?) in the following series?
13, 15, 18, 23, 30, ?