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- Question
If x +y = ?3 and x - y = ?2, then the value of 8xy (x2 + y2) is
Options- A. 6
- B. ?6
- C. 5
- D. ?5
- Correct Answer
- 5
- 1. Compute : 1112 / 139 - 5
Options- A. 557/67
- B. -3
- C. 556/67
- D. 3 Discuss
- 2. If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?
Options- A. 27abc
- B. 9abc
- C. 3abc
- D. 9a^2b^2c^2 Discuss
- 3. Solve the following : 27 - [38 - {46 - (15 - 13 - 2)}]
Options- A. 31
- B. 35
- C. 30
- D. 29 Discuss
- 4. In each question two equations numbered I and II are given,you haveto solve both the equation and choose the correctanswer. I. x2+ 30x + 81 = 0 II.y2-9y -162 = 0
Options- A. x > y
- B. x>y
- C. x < y
- D. x Discuss
- 5. Simplify 39.96% of 649.85 ÷ 13.07 = 45.14 - ?
Options- A. 25
- B. 26
- C. 27
- D. 28 Discuss
- 6. Find the greatest number that will divide 390, 495 and 300 without leaving a remainder
Options- A. 5
- B. 15
- C. 25
- D. 35 Discuss
- 7. If a2b+c=b2C+a=a2a+b=1 then 11+a+11+b+11+c is
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 8. Mr. Ankit is on tour to Siachin and he has Rs. 360 for his expenditure. If he exceeds his tour by 4 days, he must trim down his daily expenditure by Rs.3. Forhow many days is Mr. Ankit is on tour?
Options- A. 20
- B. 22
- C. 24
- D. 26 Discuss
- 9. If 9 * 6 = 45, 7 * 4 = 33, and 6 * 4 = 20, then what is the value of 5 * 3?
Options- A. 24
- B. 16
- C. 13
- D. 10 Discuss
- 10. When 721 + 722 + 723 + 724 is divided by 25 the remainder is:
Options- A. 5
- B. 17
- C. 7
- D. 0 Discuss
Simplification problems
Search Results
Correct Answer: 3
Correct Answer: 9a^2b^2c^2
Correct Answer: 35
Correct Answer:
Explanation:
x^2+ 30x + 81 = 0
x^2+ 27x + 3x + 81 = 0
x = -3, -27
y^2-9y -162 = 0
y^2-18y + 9y -162 = 0
y = -9, 18
Hence, no relationship can be established between x and y
Correct Answer: 25
Explanation:
This can be easily simplified by Approximation process
Given 39.96% of 649.85 13.07 = 45.14 - ? can be written as
40% of 650 13 = 45 - ?
Correct Answer: 15
Correct Answer: 1
Correct Answer: 20
Correct Answer: 24
Correct Answer: 0
Explanation:
Given, + + +
(1 + 7 + 49 + 343)
(400)
Now, 400 is divisible by 25. The remainder will be 0
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