Question

Observe the chart below and identify the duration during which the plant has grown the most.

$\begin{array}{cc}\text{Day}& \text{Length of the plant}\\ & \text{(in cm)}\\ 0& 0\\ 4& 1.4\\ 8& 5.3\\ 12& 9.5\\ 16& 10.2\\ 20& 10.9\end{array}$

• A. 4-8 days
• B. 0-4 days
• C. 8-12 days
• D. 16-20 days

Answer 1

The correct option is C 8-12 days

we can find the growth of plants between different intervals.

length growth in 0-4 days = 1.4 - 0 = 1.4
length growth in 4-8 days = 5.3 - 1.4 = 3.9
length growth in 8-12 days = 9.5 - 5.3 = 4.2
length growth in 12-16 days = 10.2 - 9.5 = 0.7
length growth in 12-16 days = 10.9 - 10.2 = 0.7

from above growth of plants in different intervals,

4.2 is highest growth during 8-12 days interval.

Hence, within 8-12 days the plant has grown the most.