Question

Rohan covered a distance of 30 km at a speed of 40 km/hr. He further traveled 60 km in 1 hour and 15 minutes. For how much time did he travel in total?

• A. 120 minutes
• B. 105 minutes
• C. 155 minutes
• D. 100 minutes

Answer 1

The Correct Option is A

Rohan covered 30 km at a speed of 40 km/h. The time taken for this journey can be calculated using the formula:

\[ \text{Time} = \frac{\text{Distance}}{\text{Speed}} \]

Substituting the values:

\[ \text{Time} = \frac{30}{40} = 0.75 \text{ hours} \]

Converting 0.75 hours to minutes:

\[ 0.75 \times 60 = 45 \text{ minutes} \]

Next, Rohan traveled 60 km in 1 hour and 15 minutes. Converting this to minutes:

\[ 1 \text{ hour} + 15 \text{ minutes} = 60 + 15 = 75 \text{ minutes} \]

Thus, the total time traveled is:

\[ 45 \text{ minutes} + 75 \text{ minutes} = 120 \text{ minutes} \]

Conclusion: The total time Rohan traveled is 120 minutes.

The correct answer is (a) 120 minutes.