The length of a rectangular park is 4 m more than thrice its breadth. What is the length and breadth of the pool if its perimeter is 420 m. (3 marks) (Type your answer with all the steps)
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Answer:
158.5 m, 51.5 m
Step-by-step explanation:
Let breadth = x m
Then length = 3x + 4 m
Perimeter = 2 ( l + b )
Given, perimeter is equal to 420 m
420 = 2(l+b)
210 = l + b
x + 3x + 4 = 210
4x + 4 = 210
4x = 206
x = 206/4 = 51.5 m
breadth = 51.5m
length = 3x + 4 = 3*51.5 + 4
= 158.5 m
LENGTH = 158.5 M
BREADTH = 51.5 M
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