📄 02 - SET-1 (TDS problems) Part 2, p.1

📌 In Late/Early type problems, always use the box method. (STIF).

🎯 Problem 14:

Walking with 4/5​ of my usual speed, I miss the bus by 5 minutes. What is my usual time?

A) 35 mins
B) 30 mins
C) 25 mins
D) 20 mins

• In a fraction, the denominator represents the original Speed or Time, and the numerator represents the reduced/increased Speed or Time.

🎯 Problem 15:

Walking 7/6​ of his usual rate, a boy reaches his school 4 minutes early. Find his new time to reach his school.

A) 25 mins
B) 26 mins
C) 24 mins
D) 28 mins

🎯 Problem 16:

If I walk at 3 kmph, I miss the train by 2 minutes. If, however, I walk at 4 kmph, I reach the station 2 minutes before the arrival of the train. How far do I walk to reach the station?

A) 4/5​ km
B) 5/4 km
C) 6/5​ km
D) 3/4 km

• In both the Initial case (Late) and the Final case (Early), the walking Distance will be the same.

⏱️ Time difference

• Miss keyword → Use + sign.
• Early/Before Keyword → Use - sign.

🎯 Problem 17:

A man misses a bus by 40 minutes if he travels at 30 kmph. If he travels at 40 kmph, he misses the bus by 10 minutes. What is the minimum speed required to catch the bus on time?

A) 48 kmph
B) 45 kmph
C) 43 kmph
D) 44 kmph