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- Question
Three numbers are in the ratio 1 : 2 : 3 and the sum of their cubes is 4500 .The smallest numbers is
Options- A. 4
- B. 5
- C. 6
- D. 10
- Correct Answer
- 5
- 1. Sum of three consecutive integers is 51 . The middle one is:
Options- A. 14
- B. 15
- C. 16
- D. 17 Discuss
- 2. What is the average of first 19 odd numbers?
Options- A. 9.5
- B. 15.5
- C. 19
- D. 38 Discuss
- 3. What is the remainder when 6729 is divided by 35?
Options- A. 11
- B. 7
- C. 19
- D. 13 Discuss
- 4. The least number that must be added to 8961 to make it exactly divisible by 84 is
Options- A. 27
- B. 57
- C. 141
- D. 107 Discuss
- 5. Find the least number which must be subtracted from 18265 to make it a perfect square
Options- A. 30
- B. 38
- C. 40
- D. 45 Discuss
- 6. The sum of the cubes of two numbers in the ratio 3 : 4 is 5824. The sum of the numbers is:
Options- A. 21
- B. 28
- C. 24
- D. 14 Discuss
- 7. What least value must be assigned to '*' so that the numbers 451 * 603 is exactly divisible by 9?
Options- A. 7
- B. 8
- C. 5
- D. 9 Discuss
- 8. a and b are irrational numbers such that a+b = q is a rational number; then ab is
Options- A. always rational
- B. sometimes rational
- C. always irrational
- D. some times irrational Discuss
- 9. Instead of multiplying by 25, a student multiplies that number by 52 and gets 324 more than correct answer. Then that number is
Options- A. 15
- B. 12
- C. 25
- D. 32 Discuss
- 10. The sum of three consecutive natural numbers each divisible by 5, is 225. The largest among them is
Options- A. 85
- B. 75
- C. 70
- D. 80 Discuss
Problems on Numbers
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Correct Answer: 17
Correct Answer: 19
Correct Answer: 19
Correct Answer: 27
Correct Answer: 40
Correct Answer: 28
Correct Answer: 8
Correct Answer: always irrational
Correct Answer: 12
Correct Answer: 80
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