Question

7. At the rate of Rs.5 per metre, the cost of fencing
around a rectangular garden is Rs.2500. If the length of
the garden is 1& 1/2 times the breadth. What is its breadth
in metres ?​

Answer 1

Answer:

Length = 150 Meters

Breadth = 100 Meters

Step-by-step explanation:

Rate of Fence = Rs 5 Per Meter

Total Cost of fencing = RS 2500.00

Therefore Perimeter of the Rectangle = 2500/5

= 500 Meters

Ie Perimeter = 500 = 2(l + b)

ie l + b = 500/2 = 250 Meters _______________EQN 1

Where l is length and b is the breadth

Its also given that

L = 1.5 x b = 1.5b

There fore Eqn 1 becomes

1.5b + b = 250

2.5b = 250

Therefore b = 250/2.5 = 100

Therefore l = 250 - 100  = 150 Meters

ie

Length = 150 Meters

Breadth = 100 Meters

Answer 2

Step-by-step explanation:

here, cost = rate × area