find the cost of flooring the verandah at the rate of Rs.15 per m² if the length of the floor is thrice its breadth and its perimeter is 40m
Answers
Answered by
2
Answer:
Rs.1125
Step-by-step explanation:
GIVEN THAT L=3×B
PERIMETER=40
PERIMETER=2(L+B)
40=2(L+B)
40=2(3B+B)
40=2(4B)
40=8B
B=40/8
B=5 m
L=3B
=3×5
=15 m
NOW WE HAVE TO FIND AREA
AREA=L×B
=5×15
=75 m²
FOR 1 m² =Rs.15
THEM FOR 75 m²=75×15
=Rs.1125
Rs.1125
Step-by-step explanation:
GIVEN THAT L=3×B
PERIMETER=40
PERIMETER=2(L+B)
40=2(L+B)
40=2(3B+B)
40=2(4B)
40=8B
B=40/8
B=5 m
L=3B
=3×5
=15 m
NOW WE HAVE TO FIND AREA
AREA=L×B
=5×15
=75 m²
FOR 1 m² =Rs.15
THEM FOR 75 m²=75×15
=Rs.1125
Answered by
2
Answer:
Perimeter=40
Let the breadth be x and length be 3x
Perimeter of rectangle = 2(L+B)
40m=2(3x+x)=2(4x) =8x
40/8=x
5=x
Lenght = 3x5=15m breadth =5m
Area of rectangle =lxb
=15x5=75m
The cost of the flooring the verandah at the rate =75x15 = rupees 1125.
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