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- Question
The sum of three numbers is 2, the 1st number is 1/2 times the 2nd number and the 3rd number is 1/4 times the 2nd number. The 2nd number is
Options- A. 7/6
- B. 8/7
- C. 9/8
- D. 10/9
- Correct Answer
- 8/7
- 1. If in a two digit number, the digit at unit place is z and the digit at tens place is 8, then the number is
Options- A. 80z + z
- B. 80 + z
- C. 8z + 8
- D. 80z + 8 Discuss
- 2. How many numbers are there from 2000 to 7000 which are both perfect squares and perfect cubes?
Options- A. 0
- B. 1
- C. 2
- D. 3 Discuss
- 3. One number is 25% of another number. The larger number is 12 more than the smaller. The large number is
Options- A. 48
- B. 16
- C. 4
- D. 12 Discuss
- 4. The sum of the two digits of a number is 8. If the number is subtracted from the number obtained by reversing its digits, the result is 54. Find the number ?
Options- A. 28
- B. 19
- C. 37
- D. 17 Discuss
- 5. A person in a bet 40 shots taken. 50p for a hit, 10p for a miss.(he have to give). Finally he has Rs.5. How many hits he have ?
Options- A. 15
- B. 20
- C. 25
- D. 30 Discuss
- 6. The smallest number, which should be added to 756896 so as to obtain a multiple of 11, is
Options- A. 1
- B. 2
- C. 3
- D. 5 Discuss
- 7. Of the 3 numbers whose average is 22, the first is 3/8th the sum of other 2. What is the first number?
Options- A. 16
- B. 20
- C. 22
- D. 18 Discuss
- 8. How many natural numbers are there between ?261 and ?45109?
Options- A. 144
- B. 196
- C. 168
- D. 195 Discuss
- 9. What is that least number that must be added to the product 684 × 686 to make it a perfect square?
Options- A. 685
- B. 1
- C. 684
- D. 686 Discuss
- 10. Determine the largest 4 digit number which is a perfect square.
Options- A. 9999
- B. 9702
- C. 9604
- D. 9801 Discuss
Problems on Numbers
Search Results
Correct Answer: 80 + z
Correct Answer: 1
Correct Answer: 16
Correct Answer: 17
Explanation:
Any two digit number can be written as (10P + Q), where P is the digit in the tens place and Q is the digit in the units place.
P + Q = 8 ----- (1)
(10Q + P) - (10P + Q) = 54
9(Q - P) = 54
(Q - P) = 6 ----- (2)
Solve (1) and (2) P = 1 and Q = 7
The required number is = 17
Correct Answer: 15
Explanation:
Let number of hit shots be 'X'
Let number of miss shots be 'Y'
Given X + Y = 40....(1)
50X - 10Y = 500.....(2)
Solving 1 and 2, we get
X = 15 and Y = 25
Therefore, number of hits = 15
Correct Answer: 3
Correct Answer: 18
Correct Answer: 196
Correct Answer: 1
Correct Answer: 9801
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