A circular plate has a radius of 13cm. What is the area of the plate? Use 3.14 for pi. Enter your answer as a decimal in the box
1 answer:
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Time taken by car A = 6 hr and time taken by car B is 8 hours
<u>Explanation:</u>
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Given:
Distance, d = 480 km
Let x be the time taken by B to reach the destination:
So,
Time taken by car A to reach the destination = x -2
We know:
Distance = speed X time
speed =
On substituting the value we get:
Speed of car A =
Speed of car B =
Since car A travelled 20 km/hr faster than the car B, the equation becomes:
Multiplying both sides by (x - 2) we get:
Therefore, time taken by car A = x - 2
= 8 - 2 hr
= 6 hr
Time taken by car B = 8 hr