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- Question
- .01 x .3 ÷ .4 x .5 =?
Options- A. .015
- B. .0375
- C. .00375
- D. .1
- Correct Answer
- .00375
ExplanationGiven expression = .01 x .3 ÷ .4 x .5
= .0015 ÷ .4
= .00375 - 1. Dev lent Rs. 8000 to Jairam for 17 years and Rs. 4700 to Karnik for 16 years on simple interest at the same rate of interest and received Rs. 21120 in all from both of them as interest. The rate of interest per annum is:
Options- A. 10.5 percent
- B. 10 percent
- C. 11 percent
- D. 11.5 percent Discuss
- 2. If (1 + secA)/tanA = x, then x is
Options- A. cot(A/2)
- B. tan(A/2)
- C. cosec(A/2)
- D. sec(A/2) Discuss
- 3. In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 60 questions and secures 130 marks, the no of questions he attempts correctly is :
Options- A. 35
- B. 38
- C. 40
- D. 42 Discuss
- 4. The sum of 2xy(3x + 4y - 5z) and 5yz(2x - 3y) is
Options- A. 6x2y - 8xy2 + 15y2z
- B. 6x2y + 8xy2 - 15y2z
- C. 6x2y + 8xy2 - 15y2z - 20xyz
- D. 6x2y - 8xy2 + 15y2z + 20xyz Discuss
- 5. If 2 tables and 3 chairs cost Rs, 3500 and 3 tables and 2 chairs cost Rs. 4000, then how much does a table cost ?
Options- A. 500
- B. 1000
- C. 1500
- D. 2000 Discuss
- 6. If (1 - sinA)/(1 + sinA) = x, then x is
Options- A. (cosecA - cotA)2
- B. secA - tanA
- C. (secA - tanA)2
- D. cosecA - cotA Discuss
- 7. A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed :
Options- A. 30 birds
- B. 60 birds
- C. 72 birds
- D. 90 birds Discuss
- 8. An angle is thrice its complementary angle. What is the measure of the angle?
Options- A. 22.5°
- B. 135°
- C. 45°
- D. 67.5° Discuss
- 9. If a * b = 2a - 3b + ab, then 3 * 5 + 5 * 3 is equal to :
Options- A. 22
- B. 23
- C. 24
- D. 25 Discuss
- 10. If cos?/4c - tan?/4c = x, then x is
Options- A. (?3+4)/2?3
- B. (2?2-1)/2
- C. (1-?2)/?2
- D. 5/?3 Discuss
More questions
Correct Answer: 10 percent
Correct Answer: cot(A/2)
Correct Answer: 38
Explanation:
Let the number of correct answers be X.
Number of incorrect answers = (60 ? X).
4x ? (60 ? x) = 130
=> 5x = 190
=> x = 38
Correct Answer: 6x2y + 8xy2 - 15y2z
Correct Answer: 1000
Explanation:
Let the cost of a table and that of a chair be Rs. x and Rs, y respectively.
Then, 2x + 3y = 3500 ...(i)
and 3x + 2y = 4000 .....(ii)
solving (i) and (ii) we get x = 1000, y = 500
Correct Answer: (secA - tanA)2
Correct Answer: 30 birds
Explanation:
Let the no of shots be x. Then,
Shots fired by A =(5/8)x
Shots fired by B = (3/8)x
Killing shots by A = 1/3 of (5/8)x = (5/24)x
Shots missed by B = 1/2 of (3/8)x = (3/16)x
(3/16)x = 27 x =144
Birds killed by A = (5/24)x = (5/24)*144 = 30
Correct Answer: 67.5°
Correct Answer: 22
Explanation:
3 * 5 + 5 * 3 = (2 * 3 - 3 * 5 + 3 * 5) + ( 2 * 5 - 3 * 3 + 5 * 3)
= (6 + 10 - 9 + 15) = 22.
Correct Answer: (1-?2)/?2
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