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Grade 8 - Mathematics
9.11 Problems on Time and Distance - I

Distance (d)= Speed(s) * Time(t)
If we convert kilometre per hour into metre per sec. we should multiply that with 5/18.
If we convert metre per sec. into kilometre per hour we should multiply that with 18/5.

Example:
If speed is 36 km/hr find the speed in metres per sec.?
Solution:
= 36*5/18 = 10 m/sec.


Directions: Solve the following problems. Also write at least 5 examples of your own.

Name: ___________________

Date:___________________

Grade 8 - Mathematics
9.11 Problems on Time and Distance - I

Q 1: If speed is 45 km/hr find the speed in metres per sec.?
13.5 m/sec.
12 m/sec.
12.5 m/sec.
None of these

Q 2: If speed is 63 km/hr find the speed in metres per sec.?
17.5 m/sec.
17 m/sec.
None of these
16.5 m/sec.

Q 3: If speed is 90 km/hr find the speed in metres per sec.?
25m/sec.
None of these
24 m/sec.
24.5 m/sec.

Q 4: If speed is 12 m/sec. find the speed in km/hr.?
43.2 km/hr.
None of these
43 km/hr.
43.5 km/hr

Q 5: If speed is 24 m/sec. find the speed in km/hr.?
None of these
85 km/hr
86 km/hr
86.4 km/hr.

Q 6: If speed is 7 1/2 m/sec. find the speed in km/hr.?
26 km/hr.
26.5 km/hr.
27 km/hr.
None of these

Q 7: If speed is 20 m/sec. find the speed in km/hr.?
72 km/hr.
72.5 km/hr.
73 km/hr.
None of these

Q 8: If speed is 17 m/sec. find the speed in km/hr.?
62 km/hr.
62.2 km/hr.
61 km/hr.
61.2 km/hr.

Question 9: This question is available to subscribers only!

Question 10: This question is available to subscribers only!


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