The value of x if 7, x, 23 are in the ap
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Answer value of x = 15
Que. Find the value of x if 7, x, 23 are in Ap
sol. method 1
a = 7 a2 = x a3 = 23
a3 = a + 2d
23 = 7 + 2d
23 - 7 = 2d
16 = 2d
8 = d
a2 = a + d
= 7 + 8
= 15 ans.
so the value of x = 15
method 2
a3 - a1 = 2d
23 - 7 = 2d
16 = 2d
8 = d
x = 7 + 8
= 15
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