A) 76 cm
B) 80 cm
C) 100 cm
D) 105 cm
Correct Answer: C
Solution :
Increase \[%=\left( \frac{1}{4}\times 100 \right)%=25%\] Height after 2 years \[=\left[ 64\times {{\left( 1+\frac{25}{100} \right)}^{2}} \right]cm\] \[=\left( 64\times \frac{5}{4}\times \frac{5}{4} \right)cm\] \[=100cm\]
You need to login to perform this action.
You will be redirected in
3 sec
