Question

The length and breadth of a rectangular field are in the ratio 3 : 2. If the perimeter of the field is 250m , find the cost of reaping the field at ₹15 per 50m²​

Answer 1

Answer:

Let the required ratio be x

Then

The dimensions become 3x and 2x

We know that

Perimeter = 2 (l+b)

250. = 2 ( 3x+2x )

250 = 2× 5x

10x = 250

x = 250/10

x = 25

Then the dimensions become

l = 3x

= 3×25

= 75 m

b = 2x

= 2×25

= 50 m

Then

area of rectangular field = l × b

= 75 × 50

= 3750 m^

Cost of repairing = 3750/50 × 15

= 75 × 15

= Rs 1125

Answer 2

Answer:

we know that perimeter of rectangle =

2(l+b)=250 m

2×(3x+2x) = 250 m

5x. = 125

X = 25

so the sides of rectangle

75 and 50 m

Area of rectangle = l×b = 75×50=3750 M²

BAKI AAGE KHUD KR LE