distance does he cover ?
5. A rectangular field is 90 m by 70 m. A man walks around it at the rate of 4 km
per hour. What time will he take in making 5 rounds ?
readth is 30
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Dimensions of the rectangular field = 90m × 70m. Therefore perimeter =2(l + b ) = 2(70 +90)m = 2 × 160m = 320m. Total distance to cover = 320 × 5 m = 1600m. = Distance/Speed = 1600m/200m ×3min = 24min.
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