Which of the following is the slowest speed?
OPTIONS.....
A= 45km/hr B=10m/s
C=0.9km/hr D=all are equal
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Answer:
Okay, first let's use some logic here. We know that Option A and Option D are incorrect, because 45km/hr is obviously a greater speed than all of them.
Now, with options B and C in our hand, let's convert km/hr to m/s, I.e,
0.9 km/hr × 5/18
= 9/10 × 5/18
= 1/4
= 0.25 m/s
So, now it's clear that Option C is lesser than Option B, I.e, 10 m/s.
---0.25m/s < 10m/s
---Option C < Option B
Therefore, Option C, 0.9 km/hr is your answer!
I hope it's clear!
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