the length and breadth of a playground are 80m and 35m respectively. how long will a boy take to go 3 times round the field, if he walks at rate of 1.5m per second
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Length=80
Breadth =35
Perimeter of a rectangle =2(l+b)
=2×80+35
=2×115=230
If he go around it 3 times=230×3=690
Meter per second = 1.5
(As it is in decimal form change as)
=(1 meter =100cm)
=100+5
=105cm
630×105=66150
Breadth =35
Perimeter of a rectangle =2(l+b)
=2×80+35
=2×115=230
If he go around it 3 times=230×3=690
Meter per second = 1.5
(As it is in decimal form change as)
=(1 meter =100cm)
=100+5
=105cm
630×105=66150
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