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- Question
If 2994 ÷ 14.5 = 172, then 29.94 ÷ 1.45 =?
Options- A. 0.172
- B. 1.72
- C. 17.2
- D. 172
- Correct Answer
- 17.2
Explanation29.94 = 299.4 1.45 14.5 = ❨ 2994 x 1 ❩ [ Here, Substitute 172 in the place of 2994/14.5 ] 14.5 10 = 172 10 = 17.2
Decimal Fraction problems
Search Results
- 1.
If 144 = 14.4 , then the value of x is: 0.144 x
Options- A. 0.0144
- B. 1.44
- C. 14.4
- D. 144 Discuss
Correct Answer: 0.0144
Explanation:
144 = 14.4 0.144 x ⟹ 144 x 1000 = 14.4 144 x ⟹ x = 14.4 = 0.0144 1000 - 2. 617 + 6.017 + 0.617 + 6.0017 =?
Options- A. 6.2963
- B. 62.965
- C. 629.6357
- D. None of these Discuss
Correct Answer: 629.6357
Explanation:
617.00 6.017 0.617 + 6.0017 -------- 629.6357 ---------- 3. The price of commodity X increases by 40 paise every year, while the price of commodity Y increases by 15 paise every year. If in 2001, the price of commodity X was Rs. 4.20 and that of Y was Rs. 6.30, in which year commodity X will cost 40 paise more than the commodity Y?
Options- A. 2010
- B. 2011
- C. 2012
- D. 2013 Discuss
Correct Answer: 2011
Explanation:
Suppose commodity X will cost 40 paise more than Y after z years.Then, (4.20 + 0.40z) - (6.30 + 0.15z) = 0.40
⟹ 0.25z = 0.40 + 2.10
⟹ z = 2.50 = 250 = 10. 0.25 25 ∴ X will cost 40 paise more than Y 10 years after 2001 i.e., 2011.
- 4.
4.2 x 4.2 - 1.9 x 1.9 is equal to: 2.3 x 6.1
Options- A. 0.5
- B. 1.0
- C. 20
- D. 22 Discuss
Correct Answer: 1.0
Explanation:
Given Expression = (a2 - b2) = (a2 - b2) = 1. (a + b)(a - b) (a2 - b2) - 5. The rational number for recurring decimal 0.125125.... is:
Options- A.
63 487 - B.
119 993 - C.
125 999 - D. None of these Discuss
Correct Answer:125 999
Explanation:
0.125125... = 0.125 = 125 999 - 6. 34.95 + 240.016 + 23.98 =?
Options- A. 298.0946
- B. 298.111
- C. 298.946
- D. 299.09 Discuss
Correct Answer: 298.946
Explanation:
34.95 240.016 + 23.98 -------- 298.946 --------
- 7.
The value of 0.1 x 0.1 x 0.1 + 0.02 x 0.02 x 0.02 is: 0.2 x 0.2 x 0.2 + 0.04 x 0.04 x 0.04
Options- A. 0.0125
- B. 0.125
- C. 0.25
- D. 0.5 Discuss
Correct Answer: 0.125
Explanation:
Given expression = (0.1)3 + (0.02)3 = 1 = 0.125 23 [(0.1)3 + (0.02)3] 8 - 8.
The fraction 101 27 in decimal for is: 100000
Options- A. .01027
- B. .10127
- C. 101.00027
- D. 101.000027 Discuss
Correct Answer: 101.00027
Explanation:
101 27 = 101 + 27 = 101 + .00027 = 101.00027 100000 100000 - 9. The cube root of .000216 is:
Options- A. .6
- B. .06
- C. 77
- D. 87 Discuss
Correct Answer: .06
Explanation:
(.000216)1/3 = ❨ 216 ❩ 1/3 106 = ❨ 6 x 6 x 6 ❩ 1/3 102 x 102 x 102 = 6 102 = 6 100 = 0.06
- 10. A group of students decided to collect as many paise from each member of group as is the number of members. If the total collection amounts to Rs. 59.29, the number of the member is the group is:
Options- A. 57
- B. 67
- C. 77
- D. 87 Discuss
Correct Answer: 77
Explanation:
Money collected = (59.29 x 100) paise = 5929 paise.∴ Number of members = √5929 = 77.
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