Find the 26th term of the sequence 5, 2, - 1, - 4, ....

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26 Nov 2021 AP

Find the 26th term of the sequence 5, 2, - 1, - 4, ....

OPtion

1. -25
2. -27
3. -55
4. -52
5. -67
6. -65
7. -70
8. -73
9. -77
10. None of the above

Solution

Clearly, the given sequence is an A.P. with a = 5 and d = -3.
∴a11 = a+(n−1)d
a26 = 5+ (26 – 1)-3
= 5 + 25(-3)
= 5 -75
= -70

Correct Option: 7 Best Solution (0)