12
91/2
8
7
51/2
Correct answer is B
1st term a = 2; 6th term = a + (16-1)d = 2 + 5d
2 + (2 + 5d) = 161/2; 4 + 5d = 161/2
5d = 12.5 ∴ = 2.5
the 4th term is 2 + (4-1)2.5= 91/2
In the diagram, O is the center of the circle, If ∠POQ = 80o and ∠PRQ = 5x, find the value of x.
4o
8o
16o
20o
32o
Correct answer is B
80o = 2 x 5x(angle at the center)
=80o = 10x; x = 80o/10
= 8o
1/6
1/3
1/2
2/3
5/6
Correct answer is A
Probability that 3 customers are attended to in the sequence they arrive
= prob of attending to the 1st arrival x prob of attending to the second last x prob of attending to the last
= \(\frac{1}{3} \times \frac{1}{2} \times \frac{1}{1}\)
= \(\frac{1}{6}\)
sinθ = 1/2 and cosθ = -√3/2, what is the value of θ?
30 0
60 0
90 o
120 o
150 o
Correct answer is E
In the 2nd Quadrant; SINE is the only Positive.
Where θ is 30 for the first quadrant and
150 in the 2nd quadrant which makes COSINE negative
Given that logp = 2 logx + 3logq, which of the following expresses p in terms of x and q?
p = 5xq
p = 6xq
p = x2 + q3
p = 2x + 3q
p = x2q3
Correct answer is E
log p = 2log x + 3log q
log p = logx 2 + logq 3
logp = log x 2q 3
p = x 2q 3
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