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- Question
- 4050/? ? = 450?
Options- A. 49
- B. 100
- C. 81
- D. 9
- Correct Answer
- 81
ExplanationLet 4050/?N = 450
Then ?N = 4050/450 = 9
? N = (9 x 9) = 81. - 1. What value should come in place of the question mark(?) in the following question?
√ ? /19 = 4?
Options- A. 76
- B. 5776
- C. 304
- D. 1296 Discuss
- 2. A students was asked to multiply a number by 3/2 but he divided that number by 3/2. His result was therefore 10 less than the correct answer. Find the number?
Options- A. 10
- B. 12
- C. 15
- D. 20 Discuss
- 3. A chocolate has 12 equal piece. Monju gave 1/4 th of it to Anju, 1/3 rd of it to Sujata and 1/6 th of it to Fiza. The number of piece of chocolate left with Manju is?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 4. A man has given one-fourth part of his property to his daughter, half part to his sons and one-fifth part given as charity. How much part of his property he has given?
Options- A. 1/20
- B. 19/20
- C. 1/10
- D. 9/10 Discuss
- 5. Five time of a positive integer is equal to 3 less than twice the square of that number. Find the number?
Options- A. 3
- B. 13
- C. 23
- D. 33 Discuss
- 6. 62976 ÷? = 123
Options- A. 412
- B. 502
- C. 512
- D. 522 Discuss
- 7. If x/y =3/4, then the value of [6/7 + (y - x) / (y + x)] equals?
Options- A. 5/7
- B. 11/7
- C. 1
- D. 2 Discuss
- 8. If the three-four of a number is subtracted from the number, the value so obtained is 163.What is the number?
Options- A. 625
- B. 562
- C. 632
- D. 652 Discuss
- 9. The positive number, when increased by 10 equals 200 times its reciprocal. What is the number?
Options- A. 100
- B. 10
- C. 20
- D. 200 Discuss
- 10. A man has given one -fourth part of his property to his daughter half part to his sons and one fifth part given as charity. How much part of his his property he has given?
Options- A. 1/20
- B. 19/20
- C. 1/10
- D. 9/10 Discuss
Number System problems
Search Results
Correct Answer: 5776
Explanation:
Let √N/19 = 4
Then √N = 19 x 4 = 76
∴ N = 76 x 76 = 5776.
Correct Answer: 12
Explanation:
Let the number be N.
According to the question,
(N x 3)/2 - N / (3/2) = 10
? 3N/2 - 2N/3 = 10
? (9N - 4N) / 6 = 10
? 5N / 6 = 10
? N = (10 x 6)/5 = 12
Correct Answer: 3
Explanation:
The number of pieces of chocolate left with Manju
= 1- [(1/4) + (1/3) + (1/6)
= 1 - (3 + 4 + 2)/12
= 1 - 9/12 = (12 - 9) / 12
= 3/12
Correct Answer: 19/20
Explanation:
Total share given by a person
= (1/4) + (1/2) + (1/5)
= (5 + 10 + 4)/20
= 19/20
Correct Answer: 3
Explanation:
Let the number be N.
According to the question,
? 5N = 2N2 - 3
? 2N2 - 5N - 3 = 0
? (N - 3) ( 2N + 1 ) = 0
N = 3 and N = -1/2
Thus, the required number is 3.
Correct Answer: 512
Explanation:
Let 62976/N = 123
Then N = 62976 / 123 = 512.
Correct Answer: 1
Explanation:
Given Exp. = 6/7 + [(y - x)/(y + x)]
= 6/7 + [1 - (x/y) / 1 + (x/y)]
= 6/7 + [1 - (3/4)] / [1 + (3/4)]
= 6/7 + 1/7 =1.
Correct Answer: 652
Explanation:
Let the number be N.
According to the question,
N - (N x 3/4) =163
? N/4 =163
? N=652
Correct Answer: 10
Explanation:
Let the positive number be N.
According to the question,
N + 10 = 200 / N
? N2 + 10N = 200
? N2 +10N - 200 =0
? (N - 10)(N + 20) = 0
? N = 10 & N= -20
But N not equal to -20 since N is a positive number
So, the required number is 10
Correct Answer: 19/20
Explanation:
Total share given by the person = (1/4) + (1/2) + (1/5)
= (5 + 10 + 4) / 20
=19/20
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