Question:
A man can row 6 km/h in still water. If the river flows at 2 km/h, how long will it take him to row 16 km upstream?
A man can row 6 km/h in still water. If the river flows at 2 km/h, how long will it take him to row 16 km upstream?
Show Hint
For upstream, subtract river speed from boat speed to find effective speed.
Updated On: Jul 29, 2025
- 2 hours
- 3 hours
- 4 hours
- 5 hours
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
- Step 1: Man's speed in still water = 6 km/h, river speed = 2 km/h.
- Step 2: Upstream speed = $6 - 2 = 4$ km/h.
- Step 3: Distance = 16 km. Time = $\frac{16}{4} = 4$ hours.
- Step 4: Verify: At 4 km/h, 16 km takes $16 \div 4 = 4$ hours.
- Step 5: Check options: Option (3) is 4 hours, correct.
- Step 2: Upstream speed = $6 - 2 = 4$ km/h.
- Step 3: Distance = 16 km. Time = $\frac{16}{4} = 4$ hours.
- Step 4: Verify: At 4 km/h, 16 km takes $16 \div 4 = 4$ hours.
- Step 5: Check options: Option (3) is 4 hours, correct.
Was this answer helpful?
0
0
Top Questions on Miscellaneous
- "ASEAN took steps to establish an ASEAN community on the basis of its three pillars." Explain the importance of these three pillars.
- CBSE CLASS XII - 2025
- Political Science
- Miscellaneous
- If the system of equations \[ x + 2y - 3z = 2 \] \[ 2x + \lambda y + 5z = 5 \] \[ 4x + 3y + \mu z = 33 \] has infinite solutions, then \( \lambda + \mu \) is equal to
- JEE Main - 2025
- Mathematics
- Miscellaneous
- If the square of the shortest distance between the lines $$ \frac{x-2}{1} = \frac{y-1}{2} = \frac{z+3}{-3} \quad \text{and} \quad \frac{x+1}{2} = \frac{y+3}{4} = \frac{z+5}{-5}, $$ is $ \frac{m}{n} $, where $m, n$ are coprime numbers, then $m+n$ is equal to:
- JEE Main - 2025
- Mathematics
- Miscellaneous
- Find the value of \[ \sin 70^\circ \left( \cot 10^\circ \cot 70^\circ - 1 \right). \]
- JEE Main - 2025
- Mathematics
- Miscellaneous
- What is the shape of the \( \text{ClO}_2^- \) ion according to VSEPR theory?
- JEE Main - 2025
- Chemistry
- Miscellaneous
View More Questions
Questions Asked in CAT exam
- A circular plot of land is divided into two regions by a chord of length $10\sqrt{3}$ meters such that the chord subtends an angle of $120^\circ$ at the center. Then, the area, in square meters, of the smaller region is
- CAT - 2024
- Mensuration
- For some constant real numbers p, k and a, consider the following system of linear equations in x and y:
px - 4y = 2
3x + ky = a
A necessary condition for the system to have no solution for (x, y), is- CAT - 2024
- System of Linear Equations
- When 3333 is divided by 11, the remainder is
- CAT - 2024
- Divisibility and Remainder
- Five jumbled up sentences (labelled 1, 2, 3, 4 and 5), related to a topic, are given below. Four of them can be put together to form a coherent paragraph. Identify the odd sentence and key in the number of that sentence as your answer.
- CAT - 2024
- Para Jumbles
- The passage given below is followed by four alternate summaries. Choose the option that best captures the essence of the passage.
Scientific research shows that many animals are very intelligent and have sensory and motor abilities that dwarf ours. Dogs are able to detect diseases such as cancer and diabetes and warn humans of impending heart attacks and strokes. Elephants, whales, hippopotamuses, giraffes, and alligators use low-frequency sounds to communicate over long distances, often miles. Many animals also display wide-ranging emotions, including joy, happiness, empathy, compassion, grief, and even resentment and embarrassment. It’s not surprising that animals share many emotions with us because we also share brain structures, located in the limbic system, that are the seat of our emotions.- CAT - 2024
- Para Summary
View More Questions