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- 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. What is the difference (in Rs) in Compound interest earned in 1 year on a sum of Rs 25,000 at 20% per annum compounded semi-annually and annually?
Options- A. 125
- B. 250
- C. 500
- D. 375 Discuss
- 5. If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?
Options- A. 9
- B. 10
- C. 8
- D. 12 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. 0.0028
- B. 0.0027
- C. 0.0026
- D. 0.0025 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 of half of the cloth he has ?
Options- A. 300
- B. 150
- C. 175
- D. 200 Discuss
- 10. The rational for the recurring decimal 0.125125......is
Options- A. 125/99
- B. 125/999
- C. 125/9999
- D. 125/9 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: 250
Correct Answer: 8
Correct Answer: 23/99
Explanation:
Correct Answer: 0.0027
Correct Answer: 4/5
Explanation:
16/19 =0.842,
11/14 =0.785 and
17/22 = 0.772
? 0.772 < 0.785 < 0.842
or 17/22 < 11/14 < 16/19.
Correct Answer: 150
Explanation:
Half of the cloth = 37.5/2
From 1 meter he will make 8 pieces
=> in 37.5/2 ---- ?
37.5/2 x 8
= 150.
Correct Answer: 125/999
Explanation:
0.125125...... = = 125/999
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