vi.
Sol:
Find three (3) consecutive even number such that the sum of first and third is 40.
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vi.
Sol:
Find three (3) consecutive even number such that the sum of first and third is 40.
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Answer:
The three consecutive integers are 19, 20 and 21. And 19 + 21 = 40.
Step-by-step explanation:
Let the first integer be
x
.
The next consecutive integer would be
x
+
1
and the next
x
+
2
.
The equation for the sum of the first and third integer equaling 40 can then be written as:
x
+
(
x
+
2
)
=
40
Solving gives:
2
x
+
2
=
40
2
x
+
2
−
2
=
40
−
2
2
x
=
38
x
=
19