Waec Mathematics Past Questions For Year 2021
Question 6
Simplify: (11\(_{two}\))\(^2\)
- A. 1001\(_2\)
- B. 1101\(_2\)
- C. 101\(_2\)
- D. 10001\(_2\)
Question 7
The circumference of a circular track is 9km. A cyclist rides round it a number of times and stops after covering a distance of 302km. How far is the cyclist from the starting point?
- A. 5km
- B. 6km
- C. 7km
- D. 3km
Question 8
If 16 * 2\(^{(x + 1)}\) = 4\(^x\) * 8\(^{(1 - x)}\), find the value of x.
- A. -4
- B. 4
- C. 1
- D. -1
Question 9
Mensah is 5 years old and joyce is thrice as old as mensah. In how many years will joyce be twice as old as Mensah?
- A. 3 years
- B. 10 years
- C. 5 years
- D. 15 years
Question 10
What number should be subtracted from the sum of 2 \(\frac{1}{6}\) and 2\(\frac{7}{12}\) to give 3\(\frac{1}{4}\)?
- A. \(\frac{1}{3}\)
- B. 1\(\frac{1}{2}\)
- C. 1\(\frac{1}{6}\)
- D. \(\frac{1}{2}\)
