# 3 2017 Nov WASSCE Core Maths Paper 1

1. If $$\sqrt{75} - \sqrt{27} + \sqrt{48} = p \sqrt{3}$$, find the value of p.
A. 4
B. 5
C. 6
D. 7

2. Correct 4897 to three significant figures.
A. 49000
B. 48980
C. 48980
D. 48000

3. The actual mass of a textbook is 75.6 g. A student measured the mass as 77.0 g. Find, corrrect to one decimal place, the percentage error in the measurement.
A. 1.4%
B. 1.9%
C. 2.5%
D. 2.9%

4. Kwame borrowed GHC 300.00. He repaid the loan with six equal installments of GHC 55.00. How much interest did he pay?
A. GHC 3.00
B. GHC 30.00
C. GHC 33.00
D. GHC 330.00

5. Which of the following statements is a proposition?
A. Good morning sir
B. Is she okay?
C. Oh my God
D. It is raining

6. Write down the 15th term of teh sequence 1, 2, 3; 2, 3, 4; 3, 4, 5; …
A. 13, 14, 15
B. 14, 15, 16
C. 15, 16, 17
D. 16, 17, 18

7. If 243n + 452n = 1135n, find the value of n.
A. 6
B. 7
C. 8
D. 9

8. Given that a = 3 and b = 5/3, find the value of 3a2b - 9ab2.
A. 30
B. 25
C. -17
D. -30

9. Find r in terms of q, s and t in the equation: $$\displaystyle \frac{1}{r} - \frac{2q}{s} = t$$.
A. $$r = \frac{s - t}{2q}$$
B. $$r = \frac{s + t}{2q}$$
C. $$r = \frac{s}{st - 2q}$$
D. $$r = \frac{s}{st + 2q}$$

10. If (x - y) is one of the factors of xy - ys - y2 + xs, find the other factor.
A. (y - s)
B. (s - y)
C. (y + s)
D. (s - x)