Question

Learning Notebook A park is 245 m long and 155 m wide. Richa jogs around it 5 times. How much distance does she cover?​

Answer 1

Step-by-step explanation:

$2 \times (245 + 155) = 645 \\ 645 \times 5 = 1265m \\ = 1.265km$

Answer 2

Answer:

Length of rectangular plot (l) = 180 m Breadth of rectangular (b) = 120 m Perimeter = 2 (l + b) = 2 (180 + 120) m = 2 (300) We get, = 600 m Distance travelled in 5 rounds = 600 × 5 = 3000 m i.e = 3 km Given speed = 7.5 km/hr Time taken = (3 / 7.5) h = {(3 × 10) / 75} h = (30 / 75) h We get, = (2 / 5) h = (2 / 5) × 60 = 2 × 12 = 24 minutes

Step-by-step explanation:

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