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- Question
The difference between a number and its three-iflh is 50. What is the number ?
Options- A. 75
- B. 100
- C. 125
- D. 150
- Correct Answer
- 125
ExplanationLet the number be x. Then, x - 3x/5 = 50 <=> x = (50 * 5) / 2 = 125..
- 1. N is the largest two digit number, which when divided by 3, 4 and 6 leaves the remainder 1, 2 and 4 respectively. What is the remainder when N is divided by 5?
Options- A. 4
- B. 2
- C. 0
- D. 1 Discuss
- 2. The average of 25 consecutive odd integers is 55. The highest of these integers is
Options- A. 79
- B. 105
- C. 155
- D. 109 Discuss
- 3. The sum of all prime numbers between 58 and 68 is
Options- A. 179
- B. 178
- C. 187
- D. 183 Discuss
- 4. The largest 5 digit number exactly divisible by 89 is:
Options- A. 99947
- B. 99940
- C. 99938
- D. 99939 Discuss
- 5. Determine the largest 4 digit number which is a perfect square.
Options- A. 9999
- B. 9702
- C. 9604
- D. 9801 Discuss
- 6. The total weight of a tin and the cookies it contains is 2 pounds. After ¾ of the cookies are eaten, the tin and the remaining cookies weigh 0.8 pounds. What is the weight of the empty tin in pounds?
Options- A. 0.2
- B. 0.3
- C. 0.4
- D. 0.5 Discuss
- 7. If two painters can complete two rooms in two hours, how many painters would it take to do 18 rooms in 6 hours?
Options- A. 2 painters
- B. 6 painters
- C. 4 painters
- D. None Discuss
- 8. x and y are integers x + y < 11 , and x > 6 What is the smallest possible value of x - y ?
Options- A. 1
- B. 24
- C. 4
- D. -2 Discuss
- 9. The difference between 4632 and 20000 is what number
Options- A. 15368
- B. 12652
- C. 14562
- D. 14965 Discuss
- 10. If 7 times the seventh term of an Arithmetic Progression (AP) is equal to 11 times its eleventh term, then the 18th term of the AP will be
Options- A. 1
- B. 0
- C. 2
- D. -1 Discuss
Problems on Numbers
Search Results
Correct Answer: 4
Correct Answer: 79
Correct Answer: 187
Correct Answer: 99947
Correct Answer: 9801
Correct Answer: 0.4
Explanation:
Let the weight of the empty tin = w
(2 - w) = weight of the cookies; and one quarter of the cookies weigh (2 - w)/4
One quarter of the cookies + tin = 0.8 = w + (2 - w)/4
Multiply through by 4; 3.2 = 4w + 2 - w
1.2 = 3w; w = 0.4
Correct Answer: 6 painters
Explanation:
Two painters can complete two rooms in two hours.So 18 rooms can be painted in 6 hrs by 6 painters
Correct Answer: 4
Explanation:
The smallest value will be obtained by giving x the smallest possible value while y gets the largest possible value. The smallest value for x = 7. This means that y will have to be less than or equal to 3 (so that x + y <11), but we want the largest value of y which is 3.
The difference, x - y will be 4.
Correct Answer: 15368
Explanation:
The difference between 4632 and 20000 is given by subtracting smaler number from the bigger number.
Here the bigger number is 20000
Smaller number is 4632
Now, subtracting 4632 from 20000
20000 - 4632 = 15368 and the resut is an even number.
Hence, The difference between 4632 and 20000 is 15368 and is an even number.
Correct Answer: 0
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