Waec Mathematics Past Questions and Answers

Question 541:

• WAEC 1998

A student measured the length of a room and obtained the measurement of 3.99m. If the percentage error of is measurement was 5% and his own measurement was smaller than the length , what is the length of the room?

A. 3.78m
B. 3.80m
C. 4.18m
D. 4.20m
E. 4.788m

Question 542:

• WAEC 1998

When an aeroplane is 800m above the ground, its angle of elevation from a point P on the ground is 30o. How far is the plane from P by line of sight?

A. 400m
B. 800m
C. 1500m
D. 1600m
E. 1700m

Question 543:

• WAEC 1998

Convert 35 to a number in base two

A. 1011_two
B. 10011_two
C. 100011_two
D. 110010_two
E. 110001_two

Question 544:

• WAEC 1998

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

Question 545:

• WAEC 1998

Find the number whose logarithm to base 10 is 2.6025

A. 0.0004
B. 4.004
C. 40.04
D. 400.4
E. 4004