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1. Sum of the two numbers is 21 and their difference is 7. What is the half of the greater number?
- A. 7
- B. 7
- C. 7
- D. 7
Answer: Option A
Explanation:
Let, greater number x
lower number y
x + y = 21
x - y = 7
so, 2x = 28
so, x = 14
x/2 = 7
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