Discussion
Home ‣ Aptitude ‣ Square Root and Cube Root Comments
- Question
- If ? 2401 = ? 7x then, the value of x is?
Options- A. 3
- B. 4
- C. 5
- D. 6
- Correct Answer
- 4
Explanation?2401 = ?7x
? 7x = 2401 = 74
? x = 4 - 1. If N = 11 9/ 16 then ? N =?
Options- A. 13/4
- B. 11/4
- C. 1.125
- D. None of these Discuss
- 2. If ? 256 / ? x = 2, then x is equal to?
Options- A. 64
- B. 128
- C. 512
- D. 1024 Discuss
- 3. The student of class XI of a school donated 4356 Rupees in all, for Prime Minister's National Relief Fund. Each student donated as many rupees as the number of students in the class. Find the number of students in the class.
Options- A. 65
- B. 60
- C. 66
- D. 70 Discuss
- 4. Find the least number by which 175760 be devided to make it a perfect cube.
Options- A. 10
- B. 20
- C. 100
- D. 5 Discuss
- 5. A certain number of people agree to subscribe as many rupees each as a there are subscribers. The whole subscription is 2582449 rupees. Find the number of subscribers.
Options- A. 1607
- B. 1291
- C. 1503
- D. 1603 Discuss
- 6. What is the smallest number by which 3600 be divided to make it a perfect cube?
Options- A. 9
- B. 50
- C. 30
- D. 450 Discuss
- 7. By what least number must 21600 be multiplied to make it a perfect cube?
Options- A. 6
- B. 10
- C. 30
- D. 60 Discuss
- 8. The sequence root of 0. 4 is
Options- A. 0.6
- B. 0.7
- C. 0.8
- D. 0.9 Discuss
- 9. Find the square root of 105 4/ 64.
Options- A. 151/4
- B. 1512/4
- C. 101/4
- D. 62/4 Discuss
- 10. ?1101/4 =?
Options- A. 19.5
- B. 10.25
- C. 10.5
- D. 11.5 Discuss
Square Root and Cube Root problems
Search Results
Correct Answer: 11/4
Explanation:
N = 25/16
? ?N = ?25/16
= 5/4
= 11/4
Correct Answer: 64
Explanation:
?256 / ?x = 2
? 16 = 2?x
? ?x = 8
? x = 64.
Correct Answer: 66
Explanation:
Total money donated = 4356 rupees
As total students are equal to the sum donated by each student.
Total Students =?4356
= 66
Correct Answer: 10
Explanation:
175760 = 24 x 5 x 13 3
= 23 x 2 x 5 x 133
To make perfect cube, it must be divided by 2 x 5 = 10
Correct Answer: 1607
Explanation:
Let the total number of subscribers be x.
Then, according to the question, x2 = 2582449
? x = ?2582449
= 1607
Correct Answer: 450
Explanation:
3600 = 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5.
To make it a perfect cube, the given number must be divided by 2 x 3 x 3 x 5 x 5 = 450
Correct Answer: 10
Explanation:
21600 = 6 x 6 x 6 x 10 x 10
To, make the given number a perfect cube, it must be multiplied by 10.
Correct Answer: 0.6
Explanation:
?0.4
= ?4/9
= 2/3 = 0.666
= 0.6
Correct Answer: 101/4
Explanation:
?1054/64
= ?6724/64
= 82/8 = 41/4 = 101/4
Correct Answer: 10.5
Explanation:
?1101/4
Multiply the denominator 4 with 100 and add the numerator 1.
= ?441 / 4
Simply the number in simple multiplication
= ?3 x 3 x 7 x 7 / 2 x 2
= 3 x 7/2 = 21/2
= 10.5
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