the length of a rectangular field is 10m more than its breath. if its length is 50 m, then find the time a boy takes to make two rounds of the field, if his speed is 1.5m per second.
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Answered by
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Let, breadth be x
ATQ, x+10=50
x=40
Perimeter of rectangle = 2(l+b)
= 2(50+40)
= 180
T = D/S
T = 180/1.5
T = 12 SECONDS.
..............................................................................
HOPE IT HELPS...
THANKYOU
ATQ, x+10=50
x=40
Perimeter of rectangle = 2(l+b)
= 2(50+40)
= 180
T = D/S
T = 180/1.5
T = 12 SECONDS.
..............................................................................
HOPE IT HELPS...
THANKYOU
heshvitha:
there must be a small change in your answer
Answered by
0
Answer:
given breadth=length-10
length=50 m
⇒breadth=50-10=40 m
perimeter=2(l+b)=2(50+40)=2(90)=180 m
distance traveled by boy =2*180=360
d=s*t
t=d/s=360/1.5=240 s
∴the boy takes 4 minutes to take 2 rounds in the field
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