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- Question
Product of digits of a 2-digit number is 72. If we add 9 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
Options- A. 98
- B. 89
- C. 78
- D. 87
- Correct Answer
- 89
- 1. Find two numbers whose sum is 29 and the product is 100.
Options- A. 20, 5
- B. 20, 9
- C. 25, 4
- D. 10, 10 Discuss
- 2. What is the least number that when divided by 63 and 105 leaves remainder 4 in each case?
Options- A. 634
- B. 256
- C. 214
- D. 319 Discuss
- 3. What is the least number that can be multiplied to 69120 to make it a perfect cube?
Options- A. 10
- B. 50
- C. 25
- D. 5 Discuss
- 4. All rational numbers are ____ numbers.
Options- A. integer
- B. whole
- C. irrational
- D. real Discuss
- 5. What will be the next set of numbers in the series? (2,3), (3,5), (5,7), (7,11), (11,13), ___
Options- A. 13,15
- B. 15,17
- C. 13,17
- D. 13,19 Discuss
- 6. Find a two digit number which is exactly three times the product of its digits?
Options- A. 24
- B. 12
- C. 48
- D. 36 Discuss
- 7. Which of the following is not a Triangular number?
Options- A. 15
- B. 10
- C. 5
- D. 3 Discuss
- 8. Product of digits of a 2-digit number is 18. If we add 63 to the number, the new number obtained is a number formed by interchange of the digits. Find the number.
Options- A. 92
- B. 29
- C. 36
- D. 63 Discuss
- 9. Which of the following numbers is completely divisible by 99?
Options- A. 51579
- B. 51557
- C. 55036
- D. 49984 Discuss
- 10. The sum of a non-zero number and its reciprocal is 2. What is the number?
Options- A. 1
- B. 2
- C. 0
- D. 4 Discuss
Numbers problems
Search Results
Correct Answer: 25, 4
Correct Answer: 319
Correct Answer: 25
Correct Answer: real
Correct Answer: 13,17
Correct Answer: 24
Correct Answer: 15
Correct Answer: 29
Correct Answer: 51579
Correct Answer: 1
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