Teachoo MCQ Test

10 Question MCQ (including Assertion)

Preparing for CBSE

Chapter 7 Class 7 - Finding the Unknown (Ganita Prakash II) | 10 questions

Timed test. Answer every question before time runs out. Correct answers and solutions appear after submission.
Time remaining 960
Question 1 of 10
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Question 1 of 10
Assertion (A): \(x=5\) solves \(3x+2=17\).
Reason (R): Substitution gives \(3(5)+2=17\).
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Question 2 of 10
An input is multiplied by 4 and then increased by 3. The output is 31. What is the input?
Input-output machineAn unknown input passes through operations ['× 4', '+ 3'] and produces 31.?× 4+ 331
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Question 3 of 10
Two numbers total 96, and one is three times the other. What are the numbers?
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Question 4 of 10
Solve \(x-6=-4\).
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Question 5 of 10
Which value makes \(4x+3=27\) true?
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Question 6 of 10
Solve \(x\div3+5=11\).
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Question 7 of 10
The picture has 25 dots altogether: 5 are visible and four identical blobs hide the same number x. How many dots are under one blob?
Hidden dots modelFive dots are visible and four identical blobs each hide x dots; total 25.25 dots in totalxxxx
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Question 8 of 10
The flow diagram starts with any number x. Which simplification proves that the final result is always 8?
Algebraic number trickA starting number x is doubled, increased by ten, halved, reduced by x, then increased by three.start x× 2+ 10÷ 2− x+ 3Number trick
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Question 9 of 10
One quarter of a number, increased by 9, equals the number. Find it.
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Question 10 of 10
Given \(4k+1=13\), what is \(8k+2\)?
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