Discussion
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- Question
AB is a diameter of a circle. C is a point on the tangent drawn at A . If AB = 8 cm and AC = 6 cm , then the length of BC is
Options- A. 10 cm
- B. 14 cm
- C. 5 cm
- D. 7 cm
- Correct Answer
- 10 cm
- 1. In ?ABC, ?B=35°, ?C=65° and the bisector of ?BAC meets BC in D. Then ADB is
Options- A. 40°
- B. 75°
- C. 90°
- D. 105° Discuss
- 2. If x=2+3, then the value of x2-x+1x2+x+1 is
Options- A. 2/3
- B. 3/4
- C. 4/5
- D. 3/5 Discuss
- 3. If a=101 then the value of a(a2-3a+3) is
Options- A. 1000000
- B. 1010101
- C. 1000001
- D. 999999 Discuss
- 4. The value of cos220°+cos270° is
Options- A. 0
- B. 1
- C. 1/2
- D. 13 Discuss
- 5. If (4a-3)2=0, then the value of 64a3+12a+13 is
Options- A. 0
- B. 11
- C. 22
- D. 33 Discuss
- 6. If the sum of the digits of any integer between 100 and 1000 is subtracted from the same integer , the resulting number is always divisibleby
Options- A. 2
- B. 5
- C. 6
- D. 9 Discuss
- 7. If a sum of money deposited in a bank at simple interest is doubled in 6 years, then after 12 years, the amount will be
Options- A. 5/2times the original amount
- B. 3times the original amount
- C. 7/2times the original amount
- D. 4times the original amount Discuss
- 8. The number whose square is equal to the difference of the squares of 37 and 23 is:-
Options- A. 45.09
- B. 28.98
- C. 47.09
- D. 28 Discuss
- 9. If a--b = 4 and ab = 45, find the value of a3 - b3
Options- A. 604
- B. 370
- C. 253
- D. 199 Discuss
- 10. If a/(a+b) = 15/21, what is (a+b)/(a-b) is equal to?
Options- A. 13/9
- B. 23/11
- C. 14/5
- D. 21/9 Discuss
Simplification problems
Search Results
Correct Answer: 105°
Correct Answer: 3/5
Correct Answer: 1000001
Correct Answer: 1
Correct Answer: 22
Correct Answer: 9
Correct Answer: 3times the original amount
Correct Answer: 28.98
Explanation:
Correct Answer: 604
Explanation:
Correct Answer: 21/9
Explanation:
a/(a + b) = 15/21 ? a = 15, a + b = 21
? b = 21? 15 = 6
? a ? b =15 ? 6 = 9
? (a + b)/(a ? b) = 21/9
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