Discussion
Home ‣ Aptitude ‣ Decimal Fraction Comments
- Question
0.0203 x 2.92 =? 0.0073 x 14.5 x 0.7
Options- A. 0.8
- B. 1.45
- C. 2.40
- D. 3.25
- Correct Answer
- 0.8
Explanation0.0203 x 2.92 = 203 x 292 = 4 = 0.8 0.0073 x 14.5 x 0.7 73 x 145 x 7 5
Decimal Fraction problems
Search Results
- 1. What decimal of an hour is a second?
Options- A. .0025
- B. .0256
- C. .00027
- D. .000126 Discuss
Correct Answer: .00027
Explanation:
Required decimal = 1 = 1 = .00027 60 x 60 3600 - 2. The least among the following is:
Options- A. 0.2
- B. 1 ? 0.2
- C. 0.2
- D. (0.2)2 Discuss
Correct Answer: (0.2)2
Explanation:
1 ? 0.2 = 1 = 10 = 5; 0.2 2 0.2 = 0.222...;
(0.2)2 = 0.04.
0.04 < 0.2 < 0.22....<5.
Since 0.04 is the least, so (0.2)2 is the least.
- 3. When 0.232323..... is converted into a fraction, then the result is:
Options- A.
1 5 - B.
2 9 - C.
23 99 - D.
23 100
Discuss
Correct Answer:23 99
Explanation:
0.232323... = 0.23 = 23 99 - 4. The expression (11.98 x 11.98 + 11.98 x x + 0.02 x 0.02) will be a perfect square for x equal to:
Options- A. 0.02
- B. 0.2
- C. 0.04
- D. 0.4 Discuss
Correct Answer: 0.04
Explanation:
Given expression = (11.98)2 + (0.02)2 + 11.98 x x.For the given expression to be a perfect square, we must have
11.98 x x = 2 x 11.98 x 0.02 or x = 0.04
- 5.
The value of 489.1375 x 0.0483 x 1.956 is closest to: 0.0873 x 92.581 x 99.749
Options- A. 0.006
- B. 0.06
- C. 0.6
- D. 6 Discuss
Correct Answer: 0.06
Explanation:
489.1375 x 0.0483 x 1.956 ≈ 489 x 0.05 x 2 0.0873 x 92.581 x 99.749 0.09 x 93 x 100 = 489 9 x 93 x 10 = 163 x 1 279 10 = 0.58 10 = 0.058 ≈ 0.06.
- 6. 0.002 x 0.5 =?
Options- A. 0.0001
- B. 0.001
- C. 0.01
- D. 0.1 Discuss
Correct Answer: 0.001
Explanation:
2 x 5 = 10.Sum of decimal places = 4
∴ 0.002 x 0.5 = 0.001
- 7.
(0.1667)(0.8333)(0.3333) is approximately equal to: (0.2222)(0.6667)(0.1250)
Options- A. 2
- B. 2.40
- C. 2.43
- D. 2.50 Discuss
Correct Answer: 2.50
Explanation:
Given expression = (0.3333) x (0.1667)(0.8333) (0.2222) (0.6667)(0.1250) = 3333 x 1 x 5 6 6 2222 2 x 125 3 1000 = ❨ 3 x 1 x 5 x 3 x 8 ❩ 2 6 6 2 = 5 2 = 2.50 - 8. The correct expression of 6.46 in the fractional form is:
Options- A.
646 99 - B.
64640 1000 - C.
640 100 - D.
640 99
Discuss
Correct Answer:640 99
Explanation:
6.46 = 6 + 0.46 = 6 + 46 = 594 + 46 = 640 . 99 99 99 - 9.
Which of the following fractions is greater than 3 and less than 5 ? 4 6
Options- A.
1 2 - B.
2 3 - C.
4 5 - D.
9 10
Discuss
Correct Answer:4 5
Explanation:
3 = 0.75, 5 = 0.833, 1 = 0.5, 2 = 0.66, 4 = 0.8, 9 = 0.9. 4 6 2 3 5 10 Clearly, 0.8 lies between 0.75 and 0.833.
∴ 4 lies between 3 and 5 . 5 4 6 - 10. 0.04 x 0.0162 is equal to:
Options- A. 6.48 x 10-3
- B. 6.48 x 10-4
- C. 6.48 x 10-5
- D. 6.48 x 10-6 Discuss
Correct Answer: 6.48 x 10-4
Explanation:
4 x 162 = 648. Sum of decimal places = 6.
So, 0.04 x 0.0162 = 0.000648 = 6.48 x 10 -4
Comments
There are no comments.
More in Aptitude:
Programming
Copyright ©CuriousTab. All rights reserved.