Question # 1

If a2- b2and a - b = 12 then average of 'a' and 'b' is?

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3

12

6

3/2

How many miles are there between two cities if the distance is represented by a 2.4-inch line on a map having a scale of 1 inch to 8 miles?

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19.2

12.8

8.5

38

If the ratio of x : y is 9 : 7, then x + y is

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16

2

1

None of the above

If x = 7y + 3 and z = 49y2then what is 'z' in terms of x?

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X2

x2- 3

(x - 3)2/7

None

The value of (x + y)2+ (x - y)2is?

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4

2(x2+ y2)

4xy

-4xy

What part of an hour elapses between 10: 45 a.m and 11:09 a.m?

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2/5

3/5

11/12

2

The value of x2+ 5x + 6 at x = 2 is?

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10

14

18

20

(190)²- (150)²= ?

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58600

13600

1360

1600

0.027÷ 90 = ?

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0.0003

0.03

3

0.00003

√256÷√64= ?

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1/4

26/8

16

4

x√0.09= 3; x = ?

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10

1/3

1/10

1

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