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Two trains start at the same time for two station A and B toward B and A respectively. If the distance between A and B is 220 km and their speeds are 50 km/hr and 60 km/hr respectively then after how much time will they meet each other?

12 hr
22¹/₂ hr
33 hr
41 hr

Answer:- 1

Explanation:-

Solution:

\begin{aligned} Relative speed \\ =   60  +  50 \\ =  110 km/h \\ Time taken \\ = \frac{220}{110} \\ =  2 hr \end{aligned}

$\eqalign{ & {\text{Relative speed}} \cr & {\text{ = 60 + 50}} \cr & {\text{ = 110 km/h}} \cr & {\text{Time taken}} \cr & {\text{ = }}\frac{{220}}{{110}} \cr & {\text{ = 2 hr}} \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

\begin{aligned} Relative speed \\ =   60  +  50 \\ =  110 km/h \\ Time taken \\ = \frac{220}{110} \\ =  2 hr \end{aligned}

$\eqalign{ & {\text{Relative speed}} \cr & {\text{ = 60 + 50}} \cr & {\text{ = 110 km/h}} \cr & {\text{Time taken}} \cr & {\text{ = }}\frac{{220}}{{110}} \cr & {\text{ = 2 hr}} \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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