Question

After what time will Tez and Gati meet while moving around the circular track? Both start at the same point and at the same time.
I. Tez moves at 5 m/s constant speed; Gati starts at 2 m/s and increases speed by 0.5 m/s every second thereafter.
II. Gati can complete one entire lap in exactly 10 s.

• A. The question can be answered by one of the statements alone but not by the other.
• B. The question can be answered by using either statement alone.
• C. The question can be answered by using both the statements together, but cannot be answered by using either statement alone.
• D. The question cannot be answered even by using both statements together.

Hint:

When two move around a circle, meeting time is determined by relative speed and circumference.

Answer 1

The Correct Option is C

I alone: Gives acceleration pattern of Gati, but no track length — cannot find meeting time.
II alone: Gives time for one lap for Gati but no info about Tez’s lap time — insufficient.
Together: II gives track length (speed × time), I gives Tez’s speed; relative motion can find meeting time.