Question:
the sum of two number is 64 and there difference is 13 find the number
Answer:
Let the two numbers are a and b
Given a + b = 64 .......1
and a - b = 13 ........2
Add equation 1 and 2, we get
a + b + a - b = 64 + 13
=> 2a = 77
=> a = 77/2
=> a = 38.5
From eqaution 1, we get
38.5 + b = 64
=> b = 64 - 38.5
=> b = 25.5
So, the two numbers are 38.5 and 25.5
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