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MHT CET 202621 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
21 April
Shift
Morning Shift
Subject
Biology
Chapter
Plant - Growth and Development

MHT CET 2026 · 21 April · Morning Shift · Biology · Plant - Growth and Development

If a leaf is 50 cm^2 in size and the growth rate per day is 5 cm^2...

If a leaf is 50 cm2\text{cm}^2 in size and the growth rate per day is 5 cm2\text{cm}^2 , then its relative growth rate would become ------------.

Options

  1. A50 %
  2. B100 %
  3. C20 %
  4. D10 %

Correct answer

D. 10 %

Step-by-step solution

Initial size of the leaf, W0=50 cm2W_0 = 50 \text{ cm}^2

Absolute growth rate = 5 cm2/day5 \text{ cm}^2/\text{day}

Relative growth rate is the growth per unit time expressed on a common basis, which is the initial size.

Relative growth rate = Absolute growth rateInitial size×100\dfrac{\text{Absolute growth rate}}{\text{Initial size}} \times 100

Relative growth rate = 550×100=10%\dfrac{5}{50} \times 100 = 10 \%

Answer: 10 %
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