21751
Unique Id: 18541
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DIRECTIONS
for the question:
Solve the following question and mark the best possible option.
If fourth term of an A.P. is 16 and its seventh term is 28, then its tenth term is
A)
40
B)
38
C)
42
D)
cannot be determined
E)
None of these
A
Let a be the first term of AP and d is the common difference. So a + 3d = 16…..(i)
And a + 6d = 28……..(ii). Solving these two equations we get a = 4 and d = 4. So the tenth term is T
10
= 4 + 9× 4 = 40.
Question include in Following Tests :
Progression & Series Level I - 01
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