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Question

The sum of two numbers is 25. One of the numbers exceeds the other by 5. Find the numbers.

A
16 and 9
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B
10 and 15
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C
12 and 17
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D
20 and 5
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Solution

The correct option is B 10 and 15
Let the two numbers be x and y,
Given, sum of them is 25
x+y=25 (i)
and y exceeds the x by 5
y=x+5 (ii)

Step 1: Find the value of x.
Substituting y=x+5 in (i), we get
Equation (i) x+y=25
x+x+5=25
2x=255=20x=202x=10

Step 2: Now, Find the value of y
Substitute x=10 in equation (ii)
Equation (i) y=5+x
y=5+10
y=15
x=10,y=15

Therefore, the two numbers are 10 and 15.

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