Discussion
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- Question
- 9.75 x 9.75 - 2 x 9.75 x 5.75 + 5.75 x 5.75 =?
Options- A. 13.25
- B. 3.625
- C. 4
- D. 16
- Correct Answer
- 16
ExplanationGiven expression = a2 -2ab + b2 Where a =9.75 and b=5.75
= (a-b)2
= (9.75 - 5.75)2
= 42
=16 - 1. 8.32 x 0.999 =?
Options- A. 0.831168
- B. 8.31618
- C. 8.31168
- D. 8.31668 Discuss
- 2. 3420 / 19 = (? / 0.01) x 7
Options- A. 35/9
- B. 18/7
- C. 63/5
- D. None of these Discuss
- 3. ( 17.28 /? ) / (3.6 x 0.2) = 200
Options- A. 120
- B. 1.20
- C. 12
- D. 0.12 Discuss
- 4. 0.15 / (0.5 / 15) =?
Options- A. 4.5
- B. 45
- C. 0.03
- D. 0.45 Discuss
- 5. ( 20 + 8 x 0.5 ) / ( 20 -? ) = 12
Options- A. 8
- B. 18
- C. 2
- D. None these Discuss
- 6. (0.04) 3 =?
Options- A. 0.064
- B. 0.0064
- C. 0.00064
- D. 0.000064 Discuss
- 7. The value of 47 / 10000 is?
Options- A. .0047
- B. .0470
- C. .00047
- D. .000047 Discuss
- 8. What should be subtracted from the multiplication of 0.527 and 2.013 to get 1?
Options- A. 0.060851
- B. 2.060851
- C. 0.939085
- D. 1.9339085 Discuss
- 9. 0. 53
Options- A. 53 / 100
- B. 53 / 90
- C. 53 / 99
- D. 26 / 45 Discuss
- 10. ( .803 x .647 + .803 x .353 ) =?
Options- A. .803
- B. 1
- C. .45
- D. 1.450 Discuss
Decimal Fraction problems
Search Results
Correct Answer: 8.31168
Explanation:
Given expression = 8.32 x 0.999
= 8.32 x (1-0.001)
= 8.32 - 8.32 x 0.001
=8.32 - .00832
= 8.31168.
Correct Answer: None of these
Explanation:
Let 3420 / 19 = (y / 0.01) x 7
Then , y = ( 3420 / 19) x (0.01 / 7)
= 180 / 700
= 9/35
Correct Answer: 0.12
Explanation:
Let (17.28 / y) / (3.6 x 0.2) = 200
Then,17.28 / y = 200 x 3.6 x 0.2
? y = 17.28 / (200 x 3.6 x 0.2)
= 1728 / 200 x 36 x 2
= 0.12.
Correct Answer: 4.5
Explanation:
Let Y = 0.15 / (0.5 / 15)
= (15/100) / [(5/100) / 15)
= 4.5
Correct Answer: 18
Explanation:
Let (20 + 8 x 0.5) / ( 20 - y) =12
Then, 24 =12 x (20 - y)
? 12y = 216
? y = 18
Correct Answer: 0.000064
Explanation:
(0.04)3 = 0.04 x 0.04 x 0.04
= 0.000064
Correct Answer: .0047
Explanation:
47/10000 = .0047
Correct Answer: 0.060851
Explanation:
? 0.527 x 2.013 = 1.060851
Hence, the required number = 1.060851 - 1
= 0.060851.
Correct Answer: 53 / 99
Explanation:
0.53 = 53 / 99
Correct Answer: .45
Explanation:
Given Expression = ( .803 x .647 + .803 x .353 )
= 803 x (.647 + .353)
= .803 x 1
= .803
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