Practicing Success
A and B start moving towards each other from places X and Y, respectively, at the same time. The speed of A is 20% more than that of B. After meeting on the way, A and B take $2\frac{1}{2}$ hours and x hours, now to reach Y and X, respectively. What is the value of x ? |
$3\frac{3}{5}$ $3\frac{2}{3}$ $3\frac{1}{2}$ $3\frac{2}{5}$ |
$3\frac{3}{5}$ |
As , speed increased by 20% Let initial speed = 5 Increased speed = 6 Time taken by B after meeting is = x hours Formula used :- (\(\frac{Speed \;of\; A }{Speed \;of\; B}\))2 = \(\frac{Time \;of\; B }{Time \;of\; A}\) (\(\frac{6 }{5}\))2 = \(\frac{x × 2 }{5}\) (\(\frac{36 }{25}\)) = \(\frac{2x }{5}\) x = 3\(\frac{3}{5}\) hours |