Question

The length and the breadth of a
farmhouse are 43 m and 27 m
respectively. Find the length of
wire which is needed to fence the
farmhouse 3 times, (JNV, 2011)
(a) 70 m
(b) 140 m
(c) 105 m
(d) 420 m​

Answer 1

Answer:

Given :-

Length = 43 m

Breadth = 27 m

To Find :-

Wire required to fence 3 times

Solution :-

At first we need to find Perimeter

Perimeter = 2(l + b)

Perimeter = 2(43 + 27)

Perimeter = 2(70)

Perimeter = 140

Wire required to fence 3 times = Perimeter × 3

Wire required = 140 × 3

Wire required = 420 cm

$\dag{ \sf{ \pink{ \underline{Option \: D}}}}$

Answer 2

Answer:

(d) 420 m

Step-by-step explanation:

length = 43m

breadth = 27m

Perimeter

= 2(l + b)

= 243 + 27)

= 2 (70)

= 140m

length of wire needed to fence the farmhouse 3 times = Perimeter × 3

= 140 × 3

= 420m

HOPE THIS HELPS