Question # 1

If a pipe can fill a tank in 2 hours and another pipe can fill the same tank in 40 minutes. How much time in minutes is needed to fill the tank if both the pipes are working together?

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90

50

60

30

If 3x + 5y = 10 and 3y + 5x = 30 then average if 'x' and 'y' is?

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3/2

4

5/2

7/2

1/2 of 44÷ 2.2 = ?

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20

22

44

100

If 4x - y = 13 and 3x - 2y = 7 then what is the average of 'x' and 'y'?

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4

3

2

6

Successive discounts of 10% and 15% is equivalent to a single discount of

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24%

24.5%

23.5%

22%

25%

1.02 - 0.02 + ? = 1.842

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0.222

0.842

2

None

If 3a - 5 = 3 + 2a, then a =

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8

9

10

12

6

If x + 2y = 11 and x + y = 10 the value of y is?

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1

2

3

4

The population of 8 villages is 900, 750, 1100, 1050, 1250, 555, and 630. Find the population of Ninth village if the average population of Nine villages is 900.

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1200

1050

1030

7070

x²= 1681, x = ?

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31

41

51

61

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