Mathematics Past Questions and Answers

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:

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:

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?

Question 519:

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:

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