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A rectangular hall has a perimeter of 50 m. If its area is 150 sq m, the difference between its length and breadth (in m) is:
Find it.

Class 10Quadratic Word ProblemsAlgebra — Quadratics

A4
B6
C10
D5

Step-by-Step Solution

l + b = 25

, lb=150.

l (25 - l) = 150, l^{2} - 25 l + 150 = 0, (l - 10) (l - 15) = 0. l = 15, b = 10

. Difference = 5 m.

Answer: D) 5

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