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Chapter 4 Expressions using Letter-Numbers - Part 1

If a = 8, find the value of 8a − a.

Type: MCQ • Marks: 1
If a = 8, find the value of 8a − a.
Options
A. 64
B. 72
C. 0
D. 56
Explanation
8a − a = (8 − 1)a = 7a. Substituting a = 8 gives 7 × 8 = 56.
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Class 7th Ganita Prakash 1

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