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1 1. A patient requires a 30% decrease in the dosage of his medication. His current dosage is 340mg. what will his dosage be after the decrease?
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70
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238
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270
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None of these
Correct!Wrong!238
Current dosage : 340mg
Decrease in dosage : 30%
Decrease = 340 x 30/100
=340 x 0.3
= 102
Dosage after 30% decrease=340-102
= 238
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2 Solve: 7500 + (1250/50)
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7500
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7525
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7550
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None of these
Correct!Wrong!7525
=7500 + (1250/50)
=7500 + 25
= 7525
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3 3. If x=3, then x^3 =?
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6
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9
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27
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None of these
Correct!Wrong!27
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4 The ratio 35 : 84 in simplest form is
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5:7
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7:12
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5:12
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None of these
Correct!Wrong!5:12
35 : 84
5 : 12
Divide by 7
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5 Solve √1.44
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0.8
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1.2
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8
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None of these
Correct!Wrong!1.2
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6 Which of the following fraction is smallest?
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11/13
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9/11
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3/4
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5/7
Correct!Wrong!5/7
11/13= 0.84
9/11= 0.81
3/4 = 75
5/7 = 0.71
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7 Solve
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520
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169
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28561
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None of these
Correct!Wrong!169
=
=169
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8 9 is 1/3% of what number?
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2700
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300
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27
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None of these
Correct!Wrong!2700
2700 x (1/3)/100
= 2700 x 0.3333/100
=2700 x 0.00333
= 8.999
=9
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9 A solution of water and sugar contains 10% of sugar solutions weight is 8kg. When 2kg of water is added to this solution the percentage of sugar becomes?
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10%
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12%
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18%
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None of these
Correct!Wrong!8%
Solution = 8kg =8000g
Sugar= 10%
= 8000 x 10/100
= 800 g
Water= 8000-800
= 7200g
2kg water addition
7200 + 2000
= 9200
Total new solution= 8000g + 2000g =10000
Percentage of sugar= (800/10000) x 100
= 8 %
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10 If you pay $22.90 for a DVD that includes 7% of sale tax. What is the price of DVD before the sale tax?
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23$
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21.40$
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25$
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None of these
Correct!Wrong!21.40$
Price of DVD after with sale tax: 22.90
Sale tax : 7%
= 22.90 x 7/100
= 22.9 x 0.07
=1.603
Price of DVD without sale tax = 22.90 – 1.603
= 21. 297
Which is approximately equal to our given answer
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Basic Math MCQs Quiz 2
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