Concept-wise Practice

isolated variable MCQ Questions for Class 10

isolated variable se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

1 questions tagged with isolated variable.

यदि (y=x+1) और (x+y=7), तो (x) और (y) के मान क्या होंगे?

If (y=x+1) and (x+y=7), what are the values of (x) and (y)?

Explanation opens after your attempt
Correct Answer

B. (x=3,\ y=4)

Step 1

Concept

Substituting (y=x+1) in (x+y=7) gives (2x+1=7), so (x=3) and (y=4). Use the already isolated variable in exams.

Step 2

Why this answer is correct

The correct answer is B. (x=3,\ y=4). Substituting (y=x+1) in (x+y=7) gives (2x+1=7), so (x=3) and (y=4). Use the already isolated variable in exams.

Step 3

Exam Tip

(y=x+1) को (x+y=7) में रखने पर (2x+1=7), इसलिए (x=3) और (y=4)। परीक्षा में बने हुए रूप का उपयोग करें।

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