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Algebraic Expressions and Identities — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSAlgebraic Expressions and Identities1 Mark
MCQ
Area of a rectangle with length $4ab$ and breadth $6b^2$ is:
  • A
    $24a^2b^2$
  • ✓
    $24ab^3$
  • C
    $24ab^2$
  • D
    $24ab$
✓

Answer

Correct option: B.
$24ab^3$
B.  $24ab^3$
Solution:
We know that, area of a rectangle = Lenght $\times$ Breadth
$= 4ab \times 6b^2$
This is the product of two monomials
Area of a rectangle $= (4 \times 6)ab \times b^2 = 24ab^3$

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