यदि (5) अलग अक्षरों में से (2) अक्षरों का क्रमबद्ध चयन हो तो व्युत्पत्ति के अनुसार गुणन क्या होगा?

If (2) letters are selected in order from (5) distinct letters what multiplication follows from the derivation?

Explanation opens after your attempt
Correct Answer

B. \(5\times4\)

Step 1

Concept

There are (5) choices for the first place and (4) for the second. In exams choices decrease when repetition is not allowed.

Step 2

Why this answer is correct

The correct answer is B. \(5\times4\). There are (5) choices for the first place and (4) for the second. In exams choices decrease when repetition is not allowed.

Step 3

Exam Tip

पहले स्थान के लिए (5) और दूसरे के लिए (4) विकल्प होंगे। परीक्षा में पुनरावृत्ति न हो तो विकल्प घटते हैं।

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Mathematics Answer, Explanation and Revision Hints

यदि (5) अलग अक्षरों में से (2) अक्षरों का क्रमबद्ध चयन हो तो व्युत्पत्ति के अनुसार गुणन क्या होगा? / If (2) letters are selected in order from (5) distinct letters what multiplication follows from the derivation?

Correct Answer: B. \(5\times4\). Explanation: पहले स्थान के लिए (5) और दूसरे के लिए (4) विकल्प होंगे। परीक्षा में पुनरावृत्ति न हो तो विकल्प घटते हैं। / There are (5) choices for the first place and (4) for the second. In exams choices decrease when repetition is not allowed.

Which concept should I revise for this Mathematics MCQ?

There are (5) choices for the first place and (4) for the second. In exams choices decrease when repetition is not allowed.

What exam hint can help solve this Mathematics question?

पहले स्थान के लिए (5) और दूसरे के लिए (4) विकल्प होंगे। परीक्षा में पुनरावृत्ति न हो तो विकल्प घटते हैं।