Mathematics Past Questions And Answers
If sin 3y = cos 2y and 0o \(\leq\) 90o, find the value of y
- A. 18°
- B. 36°
- C. 54°
- D. 90°
Which of the following numbers is divisible by 3: (i) 541326 (ii) 5967013?
- (a) (ii) only
- (b) (i) only
- (c) (i) & (ii)
- (d) None
Given that = {x: -2< x \(\leq\) 9}, where x is an integer what is n(T)?
- A. 9
- B. 10
- C. 11
- D. 12
The coefficient of the 7th term in the binomial expansion of \((2 - \frac{x}{3})^{10}\) in ascending powers of x is
- A. \(\frac{560}{243}\)
- B. \(\frac{841}{243}\)
- C. \(\frac{1120}{243}\)
- D. \(\frac{4481}{243}\)
Which of the following is not a measure of dispersion?
- A. Mode
- B. Mean deviation
- C. Range
- D. interquartile range
Five people are to be arranged in a row for a group photograph. How many arrangements are there if a married couple in the group insist on sitting next to each other?
- A. 48
- B. 24
- C. 20
- D. 10
P, Q, R, S are points in a plane such that PQ = 8i - 5j, QR = 5i + 7j, RS = 7i + 3j and PS = xi + yj. Find (x, y).
- A. (-6, -15)
- B. (-6, 5)
- C. (20, 5)
- D. (20, 15)
Three consecutive terms of a geometric progression are given as n-2, n and n+3. Find the common ratio
- A. 1/4
- B. 1/2
- C. 2/3
- D. 3/2
\(\begin{pmatrix} -2 & 1 \\ 2 & 3 \end{pmatrix}\) \(\begin{pmatrix}p & q \\ r & s\end{pmatrix}\) = \(\begin{pmatrix} 1 & 0 \\0 & 1 \end{pmatrix}\). What is the value of r?
- A. -1/8
- B. 3/8
- C. 5/8
- D. 14
Find the remainder when 2x3 - 11x2 + 8x - 1 is divided by x + 3
- A. -871
- B. -781
- C. -187
- D. -178

