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31. 1, 2, 5, 14, __________?
(A) 38
(B) 39
(C) 40
(D) 41
32. The value of the function at
is?
(A) 1
(B) –1
(C) 2
(D) –2
33.
(A) 0
(B) 1
(C) 32
(D) –32
34. What is the sum of the first 12 numbers of the series: 2 , 6, 10, 14, …. ?
(A) 260
(B) 268
(C) 280
(D) 288
35. What is the inverse of the function
(A)
(B)
(C)
(D)
ANSWERS: BASIC MATH MCQS
31. (D) 41
32. (B) –1
33. (A) 0
34. (D) 288
35. (D)
SOLUTIONS: BASIC MATH MCQS
31. D
32. B
33. A
34. D This is an arithmetic sequence with common difference of 4. The first element is 2, and total elements are 12. So, a1 = 1, d = 3 and n = 12. So, by using the formula of nth term of an arithmetic sequence, first we will find the 12th term
Now, by using the formula for the sum of n elements of an arithmetic sequence, we have