शहर (A) से (B) तक (4) रास्ते और (B) से (C) तक (5) रास्ते हैं। वापसी में वही रास्ता किसी भी खंड पर नहीं लेना है। आने-जाने की कुल यात्राएँ कितनी होंगी?

There are (4) routes from city (A) to (B) and (5) routes from (B) to (C). On return, the same route cannot be used on either segment. How many round trips are possible?

Explanation opens after your attempt
Correct Answer

B. (240)

Step 1

Concept

The onward trip has \(4 \times 5\) choices. On return, (4) and (3) choices remain for the two segments.

Step 2

Why this answer is correct

The correct answer is B. (240). The onward trip has \(4 \times 5\) choices. On return, (4) and (3) choices remain for the two segments.

Step 3

Exam Tip

जाते समय \(4 \times 5\) विकल्प हैं। लौटते समय क्रमशः (4) और (3) विकल्प बचते हैं।

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Mathematics Answer, Explanation and Revision Hints

शहर (A) से (B) तक (4) रास्ते और (B) से (C) तक (5) रास्ते हैं। वापसी में वही रास्ता किसी भी खंड पर नहीं लेना है। आने-जाने की कुल यात्राएँ कितनी होंगी? / There are (4) routes from city (A) to (B) and (5) routes from (B) to (C). On return, the same route cannot be used on either segment. How many round trips are possible?

Correct Answer: B. (240). Explanation: जाते समय \(4 \times 5\) विकल्प हैं। लौटते समय क्रमशः (4) और (3) विकल्प बचते हैं। / The onward trip has \(4 \times 5\) choices. On return, (4) and (3) choices remain for the two segments.

Which concept should I revise for this Mathematics MCQ?

The onward trip has \(4 \times 5\) choices. On return, (4) and (3) choices remain for the two segments.

What exam hint can help solve this Mathematics question?

जाते समय \(4 \times 5\) विकल्प हैं। लौटते समय क्रमशः (4) और (3) विकल्प बचते हैं।