Question:
A bus covers the first 39 km of its journey in 45 minutes and the remaining 25 km in 35 minutes. What is the average speed of the car?
A bus covers the first 39 km of its journey in 45 minutes and the remaining 25 km in 35 minutes. What is the average speed of the car?
Show Hint
Always check if units (minutes vs hours) need conversion.
Updated On: Apr 17, 2026
- $30~km/hr$
- $48~km/hr$
- $50~km/hr$
- $54~km/hr$
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
Step 1: Concept
$\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}$.
Step 2: Meaning
Distance is in km; time must be converted to hours.
Step 3: Analysis
- Total Distance = $39 + 25 = 64$ km. - Total Time = $45 + 35 = 80$ minutes. - Time in hours = $\frac{80}{60} = \frac{4}{3}$ hours. - $\text{Average Speed} = \frac{64}{4/3} = 64 \times \frac{3}{4} = 16 \times 3 = 48$ km/hr.
Step 4: Conclusion
Hence, the average speed is 48 km/hr.
Final Answer:(B)
$\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}$.
Step 2: Meaning
Distance is in km; time must be converted to hours.
Step 3: Analysis
- Total Distance = $39 + 25 = 64$ km. - Total Time = $45 + 35 = 80$ minutes. - Time in hours = $\frac{80}{60} = \frac{4}{3}$ hours. - $\text{Average Speed} = \frac{64}{4/3} = 64 \times \frac{3}{4} = 16 \times 3 = 48$ km/hr.
Step 4: Conclusion
Hence, the average speed is 48 km/hr.
Final Answer:(B)
Was this answer helpful?
0
0
Top CUET Quantitative Aptitude Questions
- If a solid sphere of radius 20 cm is moulded into 8 solid spherical balls of equal radius, then the radius of each ball will be:
- A class of 25 students took an English test. 15 students had an average score of 80. The other students had an average score of 60. What is the average score of the whole class?
- The price of a refrigerator is Rs 22,000. A shopkeeper marks its price 15\% above its cost price and gives a discount of 8\%. The discount is
- CUET (UG) - 2025
- Quantitative Aptitude
- Profit and Loss
- If the volume of a cube is 64 cm³, then the diagonal of cube is
- Two different dice are tossed together. Find the probability that the product of the number on the top of the dice is 6.
View More Questions
Top CUET Questions
- Find the ratio of de-Broglie wavelengths of deuteron having energy E and \(\alpha\)-particle having energy 2E :
- CUET (UG) - 2026
- Dual nature of radiation and matter
- Select the correct statements for [Fe(CN)\(_6\)]\(^{3-}\) complex:
(A) Paramagnetic
(B) sp\(^3\)d\(^2\) hybridization
(C) Magnetic moment = 5.92 BM
(D) d\(^2\)sp\(^3\) hybridization- CUET (UG) - 2025
- Coordination chemistry
- According to Hsüan-tsang's impressions of Indian education, which of the following is not included in the five vidyās, which the young were instructed after arrving at the age of seven years and upwards?
- CUET (UG) - 2025
- History of Education in India
- If A = $\begin{bmatrix} 0 & -1 \\ 1 & 0 \end{bmatrix}$ and B = $\begin{bmatrix} 1 & 0 \\ 1 & 0 \end{bmatrix}$ then the matrix AB is equal to
- CUET (UG) - 2025
- Matrices and Determinants
- Match List-I with List-II \[ \begin{array}{|l|l|} \hline \textbf{List-I} & \textbf{List-II} \\ \hline (A) \; \text{Malaria} & (I) \; \text{Inflammation of lower limb} \\ \hline (B) \; \text{Filariasis} & (II) \; \text{Cycles of fever} \\ \hline (C) \; \text{Ringworms} & (III) \; \text{Blood clots and excess mucus in stools} \\ \hline (D) \; \text{Amoebiasis} & (IV) \; \text{Scaly lesions on nails} \\ \hline \end{array} \]
- CUET (UG) - 2025
- Human health and disease
View More Questions