Question

Answer witb explanation
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question no. 4​

Answer 1

Step-by-step explanation:

a) 8 km in 1 hour 20 min

= 8 km in 80 min

In 10 min =

8 km = 80 min

x = 10 min

By cross multiplication we get,

8 × 10 = 80x

80 = 80x

x = 1km

b) 80 min = 80 × 60 = 4800 sec

= 8 km = 4800 sec

x = 30 sec

By cross multiplication we get,

8 × 30 = 4800x

240 = 4800x

x = 240/4800

x = 24/480

x = 1/20

x = 0.05 km