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1. Given that ‘x’ and ‘y’ are two positive integers. If the value of x2 – y2 = 11, then what is the value of ‘xy’?

5
16
11
30
44

2. The operation r & s is defined by r & s = (r + s)/ 3s. If (k& 2 = 5), then which of the following could be a possible value of ‘k’?

10
15
18
22
28

3. If Carl can paint a room in 2 hours and Andy can paint the same room in 3 hours, then how many hours will it take if both Carl and Andy work together?

5
0.83
1.2
1.8
1

4. Given the function, f(x) = 3x – p. If f(2) = -4, then what is the value of f(3p)?

0
10
40
30
20

5. If |4x - 5| ≤ 3, then which of the following exactly describes the interval of ‘x’?

x >= -1/2
x <= -1/2
x >= -2
x <= 1/2 or x >= 2
1/2 <= x <= 2

6. If the graph of two lines x – 2y + 3 = 0 and 2x + y – 4 = 0 intersect each other, what is their point of intersection on the X-Y coordinate plane?

(1, 2)
(-1, -2)
(2, 1)
(-2, -1)
(4, -3)