Question # 1

1/x = 1/y + 1/z then 'x' in terms of 'y' and 'z' is given by?

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(y + z) / (y-z)

yz/(y + z)

(y + z)/yz

1/z -1/y

A piece of fabric is cut into three sections so that the first is three times as long as the second and the second is three times as long as the third. What part of the entire piece is the smallest section?

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2/5

3/7

2/3

1/13

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

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

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16

2

1

None of the above

0.027÷ 90 = ?

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0.0003

0.03

3

0.00003

350 - 96÷ 18 = ?

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318

-132

328

232

When 3x2+ 5x + 7 is subtracted from x2+ 8x + 3 the result is?

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5x2- 3x + 4

3x- 2x2 - 4

x2+ 8x + 10

11x2- 3x + 10

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

(190)²- (150)²= ?

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58600

13600

1360

1600

A man spent 10% of his money. After spending 60% of the remainder he has Rs. 72 left. How much had he in the start?

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10

100

200

400

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