WAEC Past Questions and Answers - Page 3983

19,911.

The nth term of a sequence is represented by 3 x 2(2-n). Write down the first three terms of the sequence

A.

3/2, 3, 6

B.

6, 3, 3/2

C.

3/2, 3, 1/3

D.

2/3, 3, 8/3

E.

3/2, 0, 6

Correct answer is B

When n = 1, n = 2, n = 3
3 x 22 - 1 = 6
3 x 22 - 2 = 3
3 x 22 - 3 = 3/2

19,912.

Convert 35 to a number in base two

A.

1011two

B.

10011two

C.

100011two

D.

110010two

E.

110001two

Correct answer is C

No explanation has been provided for this answer.