Mathematics Past Questions And Answers
2991
Evaluate \((111_{two})^2 - (101_{two})^2\)
- A. 10two
- B. 100two
- C. 1100two
- D. 11000two
2992
Evaluate \(\int^{\frac{\pi}{2}} _{\frac{-\pi}{2}} cos x dx\)
- A. zero
- B. 1
- C. 2
- D. 3
2993
Calculate the gradient (slope) of the joining points (-1, 1) and (2, -2)
- A. -1
- B. \(\frac{-1}{2}\)
- C. \(\frac{1}{2}\)
- D. 1
2994
If in the English alphabet, A = 1, B = 2, C = 3…… and Z = 26, what will be sum of all the alphabets?
- A. 26
- B. 300
- C. 325
- D. 351
2995
If (2x + 3)3 = 125, find the value of x
- A. 1
- B. 2
- C. 3
- D. 4
2996
If 31410 - 2567 = 340x, find x.
- A. 7
- B. 8
- C. 9
- D. 10
2997
The angle of elevation of a building from a measuring instrument placed on the ground is 30o. If the building is 40m high, how far is the instrument from the foot of the building?
- A. \(\frac{20}{√3m}\)
- B. \(\frac{40}{√3m}\)
- C. 20√3m
- D. 40√3m
2998
Find the mean deviation of 1, 2, 3 and 4
- A. 1.0
- B. 1.5
- C. 2.0
- D. 2.5
2999
Given that \(\frac{8x+m}{x^2-3x-4} ≡ \frac{5}{x+1} + \frac{3}{x-4}\)
- A. 23
- B. 17
- C. -17
- D. 17
3000
Find the angle between \(\over {OP}\) = (\(^{-3}_{-4}\)) and \(\over{OQ}\) = (\(^8_{-15}\))
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