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- Question
Direction: What should come in the place of question mark (?) in the following number series? 2, 3, 6, 15, 45, ?
Options- A. 90
- B. 135
- C. 157.5
- D. 200
- Correct Answer
- 157.5
ExplanationThe pattern followed is *1.5 , * 2 , *2.5 , *3 , *3.5
- 1. 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
- 2. Which of the following numbers is completely divisible by 99?
Options- A. 51579
- B. 51557
- C. 55036
- D. 49984 Discuss
- 3. 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
- 4. Which of the following is not a Triangular number?
Options- A. 15
- B. 10
- C. 5
- D. 3 Discuss
- 5. 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
- 6. Direction: What should come in the place of question mark (?) in the following number series? 3, 4, 10, 33, 136, ?
Options- A. 150
- B. 298
- C. 463
- D. 572 Discuss
- 7. Direction: What should come in the place of question mark (?) in the following number series? 7, 10, 16, 28, ?, 100
Options- A. 34
- B. 40
- C. 52
- D. 60 Discuss
- 8. Direction: What should come in the place of question mark (?) in the following number series? 24, 25, ?, 41, -8, 73
Options- A. 13
- B. 16
- C. 25
- D. 43 Discuss
- 9. There is a three digit number. The digit at the tenth place is 3. If the place of all the digits are replaced with each other symmetrically about the tens position,then the new number obtained is 396 more than the original three digit number. The sum of the digits at unit & hundredth place is 14. Find out the original number?
Options- A. 513
- B. 539
- C. 439
- D. 613 Discuss
- 10. There are four consecutive even integers. Sum of the reciprocals of the first two number is (11/60). Find the reciprocal of third largest number of the series.
Options- A. 1/12
- B. 2/14
- C. 1/14
- D. 2/13 Discuss
Numbers problems
Search Results
Correct Answer: 1
Correct Answer: 51579
Correct Answer: 29
Correct Answer: 15
Correct Answer: 24
Correct Answer:
Explanation:
The pattern followed is *1 + 1, *2 +2 , *3 + 3 , *4 + 4 , *5 + 5
Correct Answer: 52
Explanation:
The pattern followed is +3 , +6 , +12 , +24 , +48
Correct Answer: 16
Explanation:
The pattern followed is
Correct Answer: 539
Explanation:
Ans.
Let digit = xyz
Given y = 3
According to the question = (100z+10y+x) - (100x+10y+z) = 396x99z-99x = 396
Z-x = 4
Also, Z+ x = 14
Solving (i) & (ii)
Z = 9 , x= 5
The original number is 539
Correct Answer: 1/14
Explanation:
Ans. C.
Let 4 consecutive even numbers are x, x+ 2, x+ 4, x+ 6
According to the question -
1/x + 1/x+2 = 11/60
x+2+x/ x(x+2) = 11/60
2(x+1)/x^2 + 2x = 11/60
120x + 120 = 11x 2 + 22x
11x 2 - 98x ? 120 = 0
So ,
X = -24/22 , 10
X = -12/11 , 10
So, the numbers will be 10,12,14,16.
Hence,
Third largest number = 14
Reciprocal of third number = 1/14
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