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Fiesta28 [93]
3 years ago
5

7. Diana took 2 hours to cycle from town X to town Y. Her average speed was 10 kilometers per

Mathematics
1 answer:
motikmotik3 years ago
7 0

Answer:

a.) 20 kilometers

b.)1.67 hours

Step-by-step explanation:

a.) formula= speed =distance/time

Speed= 10km/hr

Distance=unknown

Time=2hrs

Therefore from formula, distance=speed x time

10 x 2

20 kilometers

b.) If average speed is increased by 2km/hr then

total speed= 2+10=12km/hr

Distance remains constant therefore distance= 20km

Therefore time =distance/speed

20/12

= 1.67 hours

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