Question
In covering a distance of 30 km, Amit takes 2 hours more
than Sammer. If Amit doubles his speed, he will take 1 hour less than Sameer does not change his speed of travel. Amit’s original speed is _______.Solution
ATQ, Amit's speed be s km/hr ⇒ 30/s - 30/2s = 3 ⇒ 6s = 30 ⇒ s = 5 km/hr ∴ Amit's speed is 5 km/hr.
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The SI unit for measuring mass is:
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