Waec Mathematics Past Questions and Answers

Question 516:

• WAEC 1997

Cos 65^o has the same value as

A. Sin 65^o
B. Cos 25^o
C. Cos 115^o
D. Cos 205^o
E. Cos 295^o

Question 517:

• WAEC 1997

Two sides of a triangle are perpendicular. If the two sides are 8cm and 6cm, calculate correct to the nearest degree, the smallest angle of the triangle.

A. 35^o
B. 36^o
C. 37^o
D. 38^o
E. 53^o.

Question 518:

• WAEC 1997

The graph is the cumulative frequency curve for the weight distribution of 100 workers in a factory. Which of the points P,Q,R,S and T indicates the median weight?

A. T
B. S
C. R
D. Q
E. P

Question 519:

• WAEC 1997

A bag contains red, black and green identical balls. A ball is picked and replaced. The table shows the result of 100 trials. Find the experimental probability of picking a green ball.

A. 16
B. 21/25
C. 1/3
D. 4/21
E. 4/25

Question 520:

• WAEC 1997

The table shows the scores of a group of students in a test. If the average score is 3.5, find the value of x

A. 1
B. 2
C. 3
D. 4
E. 5