Discussion
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- Question
Simplify the equation 0.733+0.2730.732+0.272-0.73×0.27
Options- A. 1
- B. 0.4087
- C. 0.73
- D. 0.27
- Correct Answer
- 1
- 1. In a school there are 1500 students, 44% of them are girls. Monthly fee of each boy is 540 and fee of each girl is 25% less than that of a boy. The sum of fees of boys & girl is
Options- A. Rs. 720600
- B. Rs. 720800
- C. Rs. 720900
- D. Rs. 721000 Discuss
- 2. The sum of two positive integers is 80 & difference between them is 20. Then what is difference of squares of those numbers ?
Options- A. 1400
- B. 1600
- C. 1800
- D. 2000 Discuss
- 3. If x varies as y and x = 8 when y = 15 then the value of x when y = 10 is:
Options- A. 5
- B. 15/8
- C. 8/15
- D. 16/3 Discuss
- 4. (798+579)2- (798-579)2798 x 579 =
Options- A. 2
- B. 6
- C. 4
- D. 8 Discuss
- 5. 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
- 6. In a circle, two arcs of unequal length subtend angles in the ratio 5:3. If the smaller angle is 45° then the measure of other angle in degrees.
Options- A. 75°
- B. 72°
- C. 60°
- D. 78° Discuss
- 7. The orthocentre of an obtuseangled triangle lies
Options- A. inside the triangle
- B. outside the triangle
- C. on one side of a triangle
- D. none of these Discuss
- 8. The radius of base of a right circular cone is 6cm and its slant height is 10cm. Then its volume is (use ?=227)
Options- A. 301.71 cm3
- B. 310.71 cm3
- C. 301.17 cm3
- D. 310.17 cm3 Discuss
- 9. If a2+b2+c2=14 and a+b+c=6 , then the value of ab+bc+ca is,
Options- A. 11
- B. 12
- C. 13
- D. 14 Discuss
- 10. If ab+ba=1, then the value of a3+b3 is
Options- A. 1
- B. 0
- C. -1
- D. 2 Discuss
Simplification problems
Search Results
Correct Answer: Rs. 720900
Correct Answer: 1600
Correct Answer: 16/3
Explanation:
x : y = 8 : 15
If y = 10, x = 8/15 X 10
y = 16/3
Correct Answer: 4
Explanation:
? 4(798 X 579) / (798 X 579)
? 4
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
Correct Answer: 75°
Correct Answer: outside the triangle
Correct Answer: 301.71 cm3
Correct Answer: 11
Correct Answer: 0
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