Question

If a scooterist drives at the rate of 24 km/hr from his home, he reaches his work
place 5 minutes late. But if he drives at the rate of 30 km/hr, he reaches his work
place 4 minutes early.
(a) Find the distance of his work place from his home.
(b) is it advisable to drive at high speed? Give reason.







Please Tell it's very urgent. ​

Answer 1

ANSWER

Let his destination be xkmphr

If he drives at the rate of 24kmphr, time taken by him=

speed

distance

=

24

x

Correct time=

24

x

−

60

5

......(1)

If he drives at the rate of 30kmphr, time taken by him=

30

x

Correct time=

30

x

+

60

4

......(2)

From (1) and (2)

24

x

−

60

5

=

30

x

+

60

4

⇒

24

x

−

30

x

=

60

4

+

60

5

⇒

120

5x−4x

=

60

9

⇒x=

20

3

×120

∴x=18

Hence, the destination is 18kmphr

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Answer 2

Answer:

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