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- Question
The sum of the two numbers is 12 and their product is 35.What is the sum of the reciprocals of these numbers?
Options- A. 12/35
- B. 1/35
- C. 35/8
- D. 7/32
- Correct Answer
- 12/35
ExplanationLet a and b are the numbers.Then a+b is 12 and ab is 35.
a+b/ab = 12/35
1/b + 1/a = 12/35
- 1. How many numbers up to 300 and 700 are divisible by 2, 3 and 7 both together ?
Options- A. 7
- B. 9
- C. 11
- D. 5 Discuss
- 2. The largest 4 digit number exactly divisible by 88 is ?
Options- A. 9944
- B. 9768
- C. 8888
- D. 9988 Discuss
- 3. Which one of the following cannot be the square of a natural number?
Options- A. 32761
- B. 42437
- C. 81225
- D. 20164 Discuss
- 4. 7, 16, 36, 78, 144, ? which number come in place of question mark
Options- A. 168
- B. 196
- C. 222
- D. 256 Discuss
- 5. Find the next number in the series 14, 916, 2536,......
Options- A. 4981
- B. 6481
- C. 4964
- D. 6449 Discuss
- 6. What smallest number should be added to 4456 so that the sum is completely divisible by 6 ?
Options- A. 4
- B. 3
- C. 2
- D. 1 Discuss
- 7. How many of the following numbers are divisible by 132? 264,396,462,792,968,2178,5184,6336
Options- A. 4
- B. 5
- C. 6
- D. 7 Discuss
- 8. If the number 517?324 is completely divisible by 3,then the smallest whole number in place of ? will be:
Options- A. 2
- B. 1
- C. 3
- D. 7 Discuss
- 9. A piece of ribbon 4 yards long is used to make bows requiring 15 inches of ribbon for each. What is the maximum number of bows that can be made?
Options- A. 8
- B. 9
- C. 10
- D. 11 Discuss
- 10. Find the unit digit of 4198 + 612345 + 34866 + 2411 + 1.
Options- A. 3
- B. 2
- C. 1
- D. 0 Discuss
Numbers problems
Search Results
Correct Answer: 9
Explanation:
LCM of 2, 3, 7 is 42.
=> (700 ? 300)/42 = 9 22/42 => 9 Numbers.
Correct Answer: 9944
Explanation:
The largest 4 digit number is = 9999
After dividing 9999 with 88, we get 55 as remainder
so largest 4 digit number divisible by 88 = 9999-55 = 9944.
Correct Answer: 42437
Explanation:
The square of a natural number never ends in 7.
42437 is not the square of a natural number
Correct Answer: 222
Correct Answer: 4964
Explanation:
The pattern is ,
The next number= = 4964
Correct Answer: 2
Explanation:
6)4456(742
42
--------
25
24
-------
16
12
-----
4
------
Required number = (6-4) = 2.
Correct Answer: 4
Explanation:
132 = 4 x 3 x 11, So if the number is divisible by all three numbers 4,3 and 11,then the number is divisible by 132 also.
264 => 4,3,11(/)
396 => 4,3,11(/)
462 => 11,3
792 => 4,3,11(/)
968 => 11,4
2178 => 11,3
5184 => 3,4
6336 => 4,3,11(/)
Required number of numbers=4.
Correct Answer: 2
Explanation:
Sum of digits = (5 + 1 + 7 + x + 3 + 2 + 4) = ( 22 + x ), which must be divisible by 3.
When x=2. [(22 + 2) = 24 is divisible by 3]
So, the answer is 2
Correct Answer: 9
Explanation:
The maximum number of bows will be 4 yards (= 4 x 36 inches) divided by 15 inches.
This gives 9.6. But as a fraction of a bow is no use, we can only make 9 bows.
Correct Answer: 1
Explanation:
Given that,
Now Power Cycle of
4 is 4, 6
6 is 6
8 is 8, 4, 2, 6
1 is 1
- 198 is even number , So the unit digit value is 6
- It is always 6
- 66/4 the remainder is 2 , So the second value is 4
- 11 is odd number, So the unit digit value is 4
1 - It is always 1
Total = 21
Therefore, The unit digit is 1
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