एक कक्षा में (95) विद्यार्थियों में (56) गणित, (49) विज्ञान और (27) दोनों पढ़ते हैं। ठीक एक विषय पढ़ने वाले कितने हैं?

In a class of (95) students, (56) study Mathematics, (49) study Science and (27) study both. How many study exactly one subject?

Explanation opens after your attempt
Correct Answer

A. (51)

Step 1

Concept

Exactly one subject is ((56-27)+(49-27)=51). Do not include those who study both in exactly one.

Step 2

Why this answer is correct

The correct answer is A. (51). Exactly one subject is ((56-27)+(49-27)=51). Do not include those who study both in exactly one.

Step 3

Exam Tip

ठीक एक विषय ((56-27)+(49-27)=51) है। दोनों पढ़ने वालों को ठीक एक में शामिल न करें।

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Mathematics Answer, Explanation and Revision Hints

एक कक्षा में (95) विद्यार्थियों में (56) गणित, (49) विज्ञान और (27) दोनों पढ़ते हैं। ठीक एक विषय पढ़ने वाले कितने हैं? / In a class of (95) students, (56) study Mathematics, (49) study Science and (27) study both. How many study exactly one subject?

Correct Answer: A. (51). Explanation: ठीक एक विषय ((56-27)+(49-27)=51) है। दोनों पढ़ने वालों को ठीक एक में शामिल न करें। / Exactly one subject is ((56-27)+(49-27)=51). Do not include those who study both in exactly one.

Which concept should I revise for this Mathematics MCQ?

Exactly one subject is ((56-27)+(49-27)=51). Do not include those who study both in exactly one.

What exam hint can help solve this Mathematics question?

ठीक एक विषय ((56-27)+(49-27)=51) है। दोनों पढ़ने वालों को ठीक एक में शामिल न करें।