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MCQ Problem Solving - Algebra

The CAT Online Free Test Prep MCQs Problem Solving - Algebra

Problem Solving: Algebra

Question:

A student was asked to divide a number by 6 and add 12 to the quotient. He, however first added 12 to the number and then divided it by 6, getting 112 as the answer.
The correct answer should have been:
Option A:      114
Option B:      118
Option C:      122
Option D:      124
  A     B     C     D  
Show/Hide Answer and Explanation

Correct Answer: C

Explanation Video

Explanation

Let the number be x, then operations undertook by the student:
= x + 12 6 = 112
⇒ x = 660
Correct answer: = 660 6 + 12 = 122
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How to Solve Algebra

For Algebra question first understand the statement and the question stem. Try to solve and click the corresponding answer option. The drop down will appear to show the correct answer and explanation.