Discussion
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- Question
?ABC is right angled at B. BD is an altitude. DC = 9 cm and AC = 25 cm. What is the value of BC (in cm)?
Options- A. 12
- B. 18
- C. 16
- D. 15
- Correct Answer
- 15
- 1. In what ratio is the segment joining (-1,-12) and (3,4) divided by the x-axis?
Options- A. 1:3
- B. 3:2
- C. 3:1
- D. 2:3 Discuss
- 2. If the 3rd and the 5th term of an arithmetic progression are 13 and 21, what is the 13th term?
Options- A. 53
- B. 49
- C. 57
- D. 61 Discuss
- 3. The sum of a non-zero number and twenty times its reciprocal is 9. What is the number?
Options- A. -5
- B. 3
- C. -3
- D. 5 Discuss
- 4. What least number must be added to 213, so that the sum is completely divisible by 9?
Options- A. 3
- B. 2
- C. 1
- D. 4 Discuss
- 5. In ?ABC measure of angle B is 90°. If cosecA = 13/12, and AB = 10cm, then what is the length (in cm) of side AC?
Options- A. 24
- B. 12
- C. 14
- D. 26 Discuss
- 6. Find the average of all prime numbers between 20 and 50.
Options- A. 35.857
- B. 35.657
- C. 34.857
- D. 36.657 Discuss
- 7. Divide 20 into two parts such that the sum of the square of the parts is 232. What is the value of the two parts?
Options- A. 6, 14
- B. 8, 12
- C. 4, 16
- D. 10, 10 Discuss
- 8. Of the 3 numbers whose average is 64, the first number is 1/3 times the sum of other 2. The first number is
Options- A. 72
- B. 32
- C. 96
- D. 48 Discuss
- 9. The 7th and 12th term of an arithmetic progression are -15 and 5 respectively. What is the 16th term?
Options- A. 25
- B. 29
- C. 21
- D. 33 Discuss
- 10. The least number which when divides 37044, gives the result a perfect cube, is:
Options- A. 2
- B. 4
- C. 14
- D. 21 Discuss
Numbers problems
Search Results
Correct Answer: 3:1
Correct Answer: 53
Correct Answer: 5
Correct Answer: 3
Correct Answer: 26
Correct Answer: 35.857
Correct Answer: 6, 14
Correct Answer: 48
Correct Answer: 21
Correct Answer: 4
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