Find the average increase rate, if increase in the population in the first year is 30% and that in the second year is 40%.
A. 41%
B. 56%
C. 40%
D. 38%
Show Answer
Answer-A
Solution-
Solution(By Apex Team)
Let 100 be the original population.
1st year’s population increased = 30%
So, Population after first year
= (100 + 30% of 100)
= 130
Population in second year increases by 40%,
Then Population
= (130 + 40% of 130)
= 182
The final population become 182 which was originally at 100.
It means there is 82% increment in the population in 2 years
So, Average increment
$=\frac{82}{2}=41 \%$