Xavier Aptitude Test 2018 Paper

Question : 60 of 99

Marks: +1, -0

A girl travels along a straight line, from point A to B at a constant speed,

V_1

meters/sec for T seconds. Next, she travels from point B to C along a straight line, at a constant speed of

V_2

meters/sec for another T seconds. BC makes an angle 105° withAB. If CA makes an angle 30° with BC, how much time will she take to travel back from point C to A at a constant speed of

V_2

meters/sec, if she travels along a straight line from C to A?

0.5 ( $√3$ - 1) T
T
0.5 ( $√3$ + 1) T
$√3$ T
None of the above

Validate

Solution:

Let BD = 1
∴ tan 45° =

1/1

ΔBDC , tan 30° =

1/√3

AC = 1 +

√3

Time to travel (1 +

√3

) ⇒

{1+√3}/{2/t}

{(1+√3)t}/2

Go to Question:

Prev Question

Next Question