a rectangular field is 72 m by 58 main Amar walks around it at the rate of 3 km per hour what time will it take in taking two are two rounds
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Answer:
Just clear 72mby 58 main what does it mean
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length = 72m , breadth = 58m
perimeter of rectangular field
= 2( l + b) = 2( 72 + 58)
= 260m
1 round = 260m
2 rounds = 260 × 2 = 520m
time taken to walk 3km = 1 hr
3km = 3000m , 1 hr = 60min
60 min = 3000m
1 min = 3000 ÷ 60 = 50m
time he will take to cover distance of 520m
= 520 / 50 = 10.4 min
Answer:
_______
he will take 2 rounds of rectangular field in 10.4min
perimeter of rectangular field
= 2( l + b) = 2( 72 + 58)
= 260m
1 round = 260m
2 rounds = 260 × 2 = 520m
time taken to walk 3km = 1 hr
3km = 3000m , 1 hr = 60min
60 min = 3000m
1 min = 3000 ÷ 60 = 50m
time he will take to cover distance of 520m
= 520 / 50 = 10.4 min
Answer:
_______
he will take 2 rounds of rectangular field in 10.4min
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