Question
Easy
Meenu wrote some numbers on the blackboard and arranged them in ascending order as 2<7<9< 12. She then multiplied each number by $(-\frac{1}{2}$). Identify the correct statement regarding the above situation.
1
Number of terms in the ascending order will change.
2
Ascending order of numbers will still remain the same.
3
Mean of the numbers will remain the same.
4
Ascending order will now be changed to descending order.
Question Details
Time to Solve: 12
Exam: CTET
Level/Paper: CTET_P2
Chapter: Pedagogy of Mathematics
Topic: Approaches & Evaluation in Mathematics Teaching
Correct Answer
Option D
Explanation
When Meenu multiplies each number on the blackboard by \(-\frac{1}{2}\), the effect on the numbers and their order can be analyzed as follows: 1. Original Numbers: 2, 7, 9, 12 2. Multiplied by \(-\frac{1}{2}\): - \(2 \times -\frac{1}{2} = -1\) - \(7 \times -\frac{1}{2} = -3.5\) - \(9 \times -\frac{1}{2} = -4.5\) - \(12 \times -\frac{1}{2} = -6\) Now, let's examine the order of these new numbers: \(-1, -3.5, -4.5,тАжRead More
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