Question

Two leaves A and B are increasing their surface area by 7 $c{m}^2$ per day. Their initial size was A = 7 $c{m}^2$ and B = 70 $c{m}^2$. Choose the correct option w.r.t. their absolute growth and relative growth rates.

• A. Absolute growth rate of A is greater than absolute growth rate of B while relative growth rate of A is equal to relative growth rate of B.
• B. Absolute growth rate of A is less than absolute growth rate of B while relative growth rate of A is less than relative growth rate of B.
• C. Absolute growth rate of A is equal to absolute growth rate of B while relative growth rate of A is greater than relative growth rate of B.
• D. Absolute growth rate of A is equal to absolute growth rate of B while relative growth rate of A is less than relative growth rate of B.

Answer 1

The correct option is C Absolute growth rate of A is equal to absolute growth rate of B while relative growth rate of A is greater than relative growth rate of B.

Absolute growth = Size after unit time – initial size
$\mathrm{Relative}\mathrm{growth}=\frac{\mathrm{Growth}\mathrm{obtained}\mathrm{in}\mathrm{unit}\mathrm{time}}{\mathrm{Initial}\mathrm{size}}X100$