Question

a rectangular garden of length 10 m and width 5m ,a road 1 m wide is laid . find the cost of metalling the road at rs 200 per meter?​

Answer 1

Answer:

=12×1+12×1+5×1+5×1

=24+10=34m

2

cost =Rs.200m

2

⇒cost=34×200=Rs.6800Rs.

Answer 2

Answer:

ANSWER:

Given:

Length and breadth of garden = 10 m , 5 m

Length of the extended road = 1 m

Area of the road = Area of total land - Area of garden

Area of garden = 10 × 5

=》 \textbf{50 sq. m}50 sq. m

Area of total land = l × b

The main thing here, is to find the extended length and breadth

Extended length = 10 + 1 + 1 (as the road is around the garden, so according to the figure, the length will be extended from both the sides)

=》 12 m

Similarly, Extended breadth = 5 + 1 + 1

=》 7 m

Area of total land = 12 × 7

=》 \textbf{84 sq. m}84 sq. m

Area of the road = 84 - 50 sq. m

=》 \textbf{34 sq. m}34 sq. m

Cost of levelling the road = Rs. 100 per sq. m

=》 Cost for 34 sq. m = 100 × 34

=》 \textbf{\huge{Rs. 3400}}Rs. 3400