Discussion
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- Question
D and E are the points on the sides AB and AC respectively of a ?ABC and AD = 8 cm, DB = 12 cm, AE= 6 cm and EC = 9 cm, then BC is equal to:
Options- A. 2/5 DE
- B. 5/2 DE
- C. 3/2 DE
- D. 2/3 DE
- Correct Answer
- 5/2 DE
- 1. If 3x+22x+1 = a2x+1+bx+2 be an identity, then the value of b
Options- A. 0
- B. -1
- C. 2
- D. 3 Discuss
- 2. If a = ?2 + 1 and b = ?2 - 1, then the value of 1a+1+1b+1 will be
Options- A. 0
- B. 1
- C. 2
- D. -1 Discuss
- 3. A man spends in 8 months as much as he earns in 6 months. He saves Rs. 6000 in a year. His average monthly income is
Options- A. Rs. 2400
- B. Rs. 2000
- C. Rs. 2150
- D. Rs. 1800 Discuss
- 4. If sinA + sin2A =1 then what is the value of cos2A + cos4A
Options- A. 1/2
- B. 1
- C. 2
- D. 3 Discuss
- 5. If x+1x=5, then 6xx2+x+1 value is
Options- A. 3
- B. 2
- C. 1
- D. 0 Discuss
- 6. A, B and C can finish a job working alone in 72, 24 and 36 days respectively. In how many days they can finish the job if they worked together?
Options- A. 12
- B. 9
- C. 15
- D. 18 Discuss
- 7. If [7(5x/3 - 3/2)]/2 + 3/2 = 1/4, then what is the value of x?
Options- A. 35/24
- B. 24/35
- C. -24/35
- D. -35/24 Discuss
- 8. If a3 + b3 = 19 and ab = -6 , then what is the value of a + b?
Options- A. 5
- B. 7
- C. 1
- D. -5 Discuss
- 9. What is the sum of the first 12 terms of an arithmetic progression if the 3rd term is -13 and the 6th term is -4?
Options- A. 67
- B. 45
- C. -30
- D. -48 Discuss
- 10. What is the reflection of the point (5, 2) in the line x = -3?
Options- A. (-11 ,2)
- B. (-11 ,-2)
- C. (11 ,-2)
- D. (11 ,2) Discuss
Simplification problems
Search Results
Correct Answer: -1
Correct Answer: 1
Correct Answer: Rs. 2000
Correct Answer: 1
Correct Answer: 1
Correct Answer: 12
Correct Answer: 24/35
Correct Answer: 1
Correct Answer: -30
Correct Answer: (-11 ,2)
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