tell me please fast
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Answer:
Distance : 646 km
Speed : 170 km/h
Step-by-step explanation:
Distance
3 4/5 = 19/5
1 1/2 = 3/2
19/5 ÷ 3/2
19/5 × 2/3 = 38/15
255 × 38/15 = 17 × 38/1 = 17 × 38 = 646 km
Speed
Speed = Distance covered ÷ Time taken
= 255 ÷ 1 1/2 = 255 × 2 ÷ 1 1/2 × 2 = 510 ÷ 3 = 170 km/h
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