1.

Length and width of a rectangular field is 7 m and 3 m respectively. Find the cost of growing grass on it if it requires Rs. 5 to grow grass on 1 \[m_{{}}^{2}\]area.

A. Rs. 105
B. Rs. 110
C. Rs. 107
D. Rs. 100
E. None of these
Answer» B. Rs. 110


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