Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer?

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A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?

Statements :

I. The speed of the boat in still water is 2 km/h more than the speed of the current.

II. The speed of the current is 1 km/h more than the speed of the boat.

III. Boat covers the distance of y kilometres between A and B both downstream and upstream in x hours.

a)
All of I, II and III are required
b)
Both II and III are required
c)
I and III taken together are sufficient
d)
Either I and II together or II and III together are sufficient

Correct answer is option 'D'. Can you explain this answer?

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Directions: Each of the following questions has a problem followed by ...

Answer:

Problem:

What is the speed of the boat in still water?

Statements:

The speed of the boat in still water is 2 km/h more than the speed of the current.

The speed of the current is 1 km/h more than the speed of the boat.

Boat covers the distance of y kilometres between A and B both downstream and upstream in x hours.

Solution:

The problem requires us to find the speed of the boat in still water. Statement I and Statement II provide a relationship between the speed of the boat and the speed of the current. Statement III provides information about the distance covered and time taken by the boat to cover the distance between A and B upstream and downstream.

If we take Statement I and II together, we can form two equations in two variables, which can be solved to find the values of the speed of the boat and the speed of the current. Hence, I and II taken together are sufficient to answer the problem.

If we take Statement II and III together, we can form an equation in one variable, which can be solved to find the value of the speed of the boat. Hence, II and III taken together are sufficient to answer the problem.

If we take Statement I and III together, we can form two equations in two variables, which can be solved to find the values of the speed of the boat and the speed of the current. Hence, I and III taken together are sufficient to answer the problem.

Therefore, either I and II together or II and III together are sufficient to answer the problem.

Answered by Dr Manju Sen · View profile

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Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer?

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Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer?.

Solutions for Directions: Each of the following questions has a problem followed by a few numberedstatements. Decide which of the statements are sufficient for answering the problem and choose youranswer from the alternatives.A boat travels in a stream from A to B and then from B to A. What is the speed of the boat in still water ?Statements :I. The speed of the boat in still water is 2 km/h more than the speed of the current.II. The speed of the current is 1 km/h more than the speed of the boat.III. Boat covers the distance of y kilometres between A and B both downstream and upstream in xhours.a)All of I, II and III are requiredb)Both II and III are requiredc)I and III taken together are sufficientd)Either I and II together or II and III together are sufficientCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.

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