Question

find the cost of fencing a rectangular field 34m and 20cm long and 16m 30m wide at rupees 40 per meter what will be the cost of turfing it at rupees 21 per square metre​

Answer 1

Answer:

Cost of fencing =6416 Rupees  , Cost of turfing =33037.2 Rupees

Step-by-step explanation:

According to the information provided in the question it is given as

Rectangular field size

L= 34 m 20 cm

B = 16 m 30 m =16+30= 46 m

Rate for fencing = 40/meter

Rate of turfing = 21/ sq meter

We need to find the rate of fencing also rate of turfing

For finding first we convert the quantity in same unit that is  cm into m

L= 34 m 20 cm

As 1 cm = 0.01 m

L= 34 m + 0.01 x 20 m =

L =34 +0.2 =34.2 m

Now we find the perimeter of rectangle which is nothing but the fencing

Perimeter = 2(l+b)

Substituting the values

$P = 2( 34.2 + 46 )\\P = 2(80.2)\\P =160.4m^{2}$

Now

Cost of fencing = perimeter x rate /m

 $C = 160.4 \times 40\\C = 6416 rupees$

Now

Area of rectangular field = L x B

Substituting the values

Cost of turfing = area

$A =34.4 \times 46\\A = 1573.2m^{2}$

Cost of turfing rectangular field = Area of field x rate /m

$C = 1573.2 \times 21\\C = 33037.2 Rupees$

Hence the cost of fencing is 6416 Rupees  and cost of turfing is 33037.2 Rupees

Answer 2

QUESTION :-

find the cost of fencing a rectangular field 34m and 20cm long and 16m 30m wide at rupees 40 per meter what will be the cost of turfing it at rupees 21 per square metre

ANSWER :-

cost of fencing = rs 4040

cost of turfing = rs 11706.66

GIVEN :-

L = 34m 20cm

B = 16m 30 cm

cost of turfing = rs 21

TO FIND :-

what will be the cost of turfing it at rupees 21 per square metre = ?

SOLUTION :-

fencing = perimeter of rectangle

field = 2 ( L + B)

= 2 ( 34.2 + 16.3) m

= 101 m

cost of fencing of a rectangular field

at 40 per metre = 40 × 101 = rs 4040

turfing a rectangle field

• area of rectangle field = L × B = ( 34.2 × 16.3)

= 557.46m²

Cost of turfing it at Rs 21 per

square meter = rs 21 × 557.46m²

= rs 11706.66