A. Rs.3600

B. Rs.3700

C. Rs.3800

**D. Rs.3900 (Correct)**

Explanation:

Area = (l + b – d) d

(80 + 60 – 10)10 => 1300 m2

1300 * 3 = Rs.3900

Answering Exams

A. Rs.3600

B. Rs.3700

C. Rs.3800

**D. Rs.3900 (Correct)**

Explanation:

Area = (l + b – d) d

(80 + 60 – 10)10 => 1300 m2

1300 * 3 = Rs.3900

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