एक रेलवे यात्रा में शहर (A) से (B) तक (4) ट्रेनें और (B) से (C) तक (5) ट्रेनें हैं। यदि पूरी यात्रा (A) से (C) तक (B) होकर करनी है तो कुल तरीके कितने हैं?

In a railway journey there are (4) trains from city (A) to (B) and (5) trains from (B) to (C). If the whole journey from (A) to (C) must be through (B) how many ways are possible?

Explanation opens after your attempt
Correct Answer

A. (20) तरीके(20) ways

Step 1

Concept

There are (4) choices in the first stage and (5) in the second stage. The total is \(4 \times 5=20\) ways.

Step 2

Why this answer is correct

The correct answer is A. (20) तरीके / (20) ways. There are (4) choices in the first stage and (5) in the second stage. The total is \(4 \times 5=20\) ways.

Step 3

Exam Tip

पहले चरण में (4) और दूसरे चरण में (5) विकल्प हैं। कुल \(4 \times 5=20\) तरीके हैं।

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Mathematics Answer, Explanation and Revision Hints

एक रेलवे यात्रा में शहर (A) से (B) तक (4) ट्रेनें और (B) से (C) तक (5) ट्रेनें हैं। यदि पूरी यात्रा (A) से (C) तक (B) होकर करनी है तो कुल तरीके कितने हैं? / In a railway journey there are (4) trains from city (A) to (B) and (5) trains from (B) to (C). If the whole journey from (A) to (C) must be through (B) how many ways are possible?

Correct Answer: A. (20) तरीके / (20) ways. Explanation: पहले चरण में (4) और दूसरे चरण में (5) विकल्प हैं। कुल \(4 \times 5=20\) तरीके हैं। / There are (4) choices in the first stage and (5) in the second stage. The total is \(4 \times 5=20\) ways.

Which concept should I revise for this Mathematics MCQ?

There are (4) choices in the first stage and (5) in the second stage. The total is \(4 \times 5=20\) ways.

What exam hint can help solve this Mathematics question?

पहले चरण में (4) और दूसरे चरण में (5) विकल्प हैं। कुल \(4 \times 5=20\) तरीके हैं।