Discussion
Home ‣ Aptitude ‣ Decimal Fraction Comments
- Question
3 x 0.3 x 0.03 x 0.003 x 30 =?
Options- A. 0.0000243
- B. 0.000243
- C. 0.00243
- D. 0.0243
- Correct Answer
- 0.00243
Explanation3 x 3 x 3 x 3 x 30 = 2430. Sum of decimal places = 6
Therefore, 3 x 0.3 x 0.03 x 0.003 x 30 = 0.002430 = 0.00243
- 1. If 1.5x = 0.04y, then the value of ( (y - x) / (y+x) ) is :
Options- A. 73/77
- B. 7.3/77
- C. 730/77
- D. 7300/77 Discuss
- 2. If 47. 2506 = 4*A + 7/B + 2*C + 5/D + 6*E, then the value of 5*A + 3*B + 6*C + D + 3*E is :
Options- A. 55.6003
- B. 53.603
- C. 153.6003
- D. 213.003 Discuss
- 3. When 0.36 is written in simplest form, the sum of the numerator and the denominator is :
Options- A. 15
- B. 34
- C. 64
- D. 13 Discuss
- 4. There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 36000 after 2 years at the same rate?
Options- A. Rs 6150
- B. Rs 7687.5
- C. Rs 3690
- D. Rs 4612.5 Discuss
- 5. There is 40% increase in an amount in 5 years at simple interest. What will be the compound interest of Rs. 25000 after 3 years at the same rate?
Options- A. Rs 6492.8
- B. Rs 12985.6
- C. Rs 16232
- D. Rs 9739.2 Discuss
- 6. 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
- 7. What decimal of an hour is a second
Options- A. .0028
- B. .0027
- C. .0026
- D. .0025 Discuss
- 8. Which of the following fractions is greater than 3 /4 and less than 5 / 6 ?
Options- A. 3 / 5
- B. 4 / 5
- C. 7 / 5
- D. 9 / 5 Discuss
- 9. A tailor has 37.5 metres of cloth and he has to make 8 pieces out of a metre of cloth. How many pieces can he make out this cloth ?
Options- A. 300
- B. 360
- C. 400
- D. 450 Discuss
- 10. 54.327 x 357.2 x 0.0057 is same as
Options- A. 5.4327 x 3.572 x5.7
- B. 5.4327 x 3.572 x0.57
- C. 54327 x 3572 x 0.0000057
- D. None of these Discuss
Decimal Fraction problems
Search Results
Correct Answer: 73/77
Explanation:
x / y = 0.04 / 1.5 = 4 / 150 = 2 / 75.
= > ( (y - x) / (y+x) ) = (1 - (x / y)) / ( 1 + ( x / y)) = (1 - 2/75) / (1 + 2/75) = 73/77...
Correct Answer: 153.6003
Explanation:
4*A + 7/B + 2*C + 5/D + 6*E =47.2506
=> 4 * A + 7/B + 2 *C + 5/D + 6*E = 40 + 7 + 0.2 + 0.05 + 0.0006
Comparing the terms on both sides, we get :
4*A =40, 7/B = 7, 2*C = 0.2, 5/D = 0.05, 6*E = 0.0006
A = 10,
B = 1,
C = 0.1,
D = 100,
E = 0.0001.
5*A + 3*B + 6*C + D + 3*E =(5*10) + (3*1) + (6*0.1) +100 +(3*0.0001)
=50 + 3 + 0.6 + 100 + 0.003 = 153.6003.
Correct Answer: 34
Explanation:
0.36 = 36/100 = 9/25.
Sum of the numerator and denominator is 9 + 25 = 34
Correct Answer: Rs 3690
Correct Answer: Rs 6492.8
Correct Answer: 23/99
Explanation:
Correct Answer: .0027
Explanation:
1 / (60 * 60) = 1 / 3600 = .0027
Correct Answer: 4 / 5
Explanation:
3 /4 = 0.75, 5/6 = 0.833, 1/2 = .5, 2/3 = 0.66, 4/5 = 0.8, 9/10 = 0.9.
clearly 0.8 lies between 0.75 and .833.
4/5 lies between 3/4 and 5/6..
Correct Answer: 300
Explanation:
Length of each piece = (1/8) m = 0.125 m
Required no of pieces = (37.5/0.125) = (375 * 100) / 125 = 300.
Correct Answer: 5.4327 x 3.572 x5.7
Explanation:
Number of decimal places in the given expression = 8
Number of decimal places in (A) = 8
Number of decimal places in (B) = 9
Number of decimal places in (C)= 7
Clearly , the expresssion in (A) is the same as the given Expression.
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