1. In a 100m race, Kamal defeats Bimal by 5 seconds. If the speed of Kamal is 18 Kmph, then the speed of Bimal is
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By: anil on 05 May 2019 02.01 am
As we know distance is constant for vimal and kamal and that is equal to 100 m.
hence $$V_{bimal} imes t_{bimal}$$ = 100
or $$V_{bimal} imes (t_{kamal} + 5)$$ = 100
where $$t_{kamal}$$ will be $$frac{Distance}{V_{kamal}}$$ i.e. $$frac{100 m}{18 kmph}$$
so $$V_{bimal} imes (frac{100 m}{18 kmph} + 5)$$ = 100
After solving above equation we will get $$V_{bimal}$$ = 4 $$frac{m}{s}$$ or 14.4 kmph
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hence $$V_{bimal} imes t_{bimal}$$ = 100
or $$V_{bimal} imes (t_{kamal} + 5)$$ = 100
where $$t_{kamal}$$ will be $$frac{Distance}{V_{kamal}}$$ i.e. $$frac{100 m}{18 kmph}$$
so $$V_{bimal} imes (frac{100 m}{18 kmph} + 5)$$ = 100
After solving above equation we will get $$V_{bimal}$$ = 4 $$frac{m}{s}$$ or 14.4 kmph