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1. The area of a rectangular field is 2100 sq. meters. If the field is 60 metres long, what is its perimeter ?

A. 180 m

B. 210 m

C. 240 m

D. Cannot be determined

Solution:

\begin{aligned} Breadth = \frac{Area}{Length} \\ = (\frac{2100}{60}) m \\ = 35 m \\ ∴ Perimeter = 2 (60 + 35) m \\ = 190 m \end{aligned}

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