70th B.P.S.C. Pre-2024
Which of the following is an irrational number? Irrational numbers are numbers that are neither divisible nor recurring. As per the options, the number 3.141141114… is neither divisible nor recurring. 23. What is the 14th term of the sequence 14, 10, 6, 2, .......?
a42
b34
c48
d38✓ Correct
eNone of the above
Explanation
The given number series represents an arithmetic progression. 14, 10, 6, 2 First term (a) = 14 Common difference (d) = – 4 T14 = a + (n – 1) d = $14 + (14 - 1) \times (-4)$ = $14 + (13) \times (-4)$ = $14 - 52$ = – 38
general-mental-ability