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Linear Equations : Math MCQ Practice Questions & Answers (Sanskrit) - ObjectiveMcq

Math Practice

Topics

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PracticeMathAlgebraLinear Equations

Linear Equations in Math : Practice MCQ Questions & Answers with Explanations

2 practice sets · Page 1 of 1

MathHardAlgebraLinear Equations

1.

The sum of two numbers is 50 and their difference is 10. What is the product of the two numbers?

A

600

B

575

C

525

D

650

Correct Answer:

(A) 600

Explanation:

Let numbers be x and y. x + y = 50, x – y = 10. Solving: x = 30, y = 20. Product = 30 × 20 = 600.

MathEasyAlgebraLinear Equations

2.

If 3x + 6 = 21, what is the value of x?

A

3

B

5

C

7

D

9

Correct Answer:

(B) 5

Explanation:

3x + 6 = 21 → 3x = 15 → x = 5.