If 6,x,y,81 are the consecutive term of an ap,what is the common difference
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Answer:
x = 31
Step-by-step explanation:
AP- 6,x,y,81
a = 6 (first term)
d = x-6 (common difference is a2 - a)
a4 = 81 (4th term of the AP is 81)
an = a + (n-1)(d)
a4 = a + (4-1)(d)
81 = 6 + (3)(x-6)
75 = 3x - 18
93 = 3x
Therefore
x = 31
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