Entry Test MCQ :: Equations and Inequalities
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| 61. |
If r ? -s and a = (r-s) / (r+s) +1 then a + 1= |
| A. |
2r / (r+s) + 1 |
B. |
(r-s+1) / (r +s) |
| C. |
(2r-2s) / (r+s) |
D. |
2s / (r+s) |
| E. |
(1-r+s)/(r+s) |
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Answer: Option A
Explanation:
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| 62. |
If x = 2 and y = 3 then (1 / x + 1 / y) / (xy) = |
Answer: Option B
Explanation:
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| 63. |
If x > 1 and a / b = 1 - 1 / x then b/a = |
Answer: Option D
Explanation:
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| 64. |
Which of the following is equivalent to : 3x2 + 18x + 27 |
| A. |
3 (x2 + 6x +3) |
B. |
3(x+3)(x+6) |
| C. |
3(x+3)2 |
D. |
3x (x+6+9) |
| E. |
3x2 + x (18+27) |
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Answer: Option C
Explanation:
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