Question # 1

Five bells begin to toll together and toll at intervals of 36, 45, 72, 81 and 108 seconds. After what interval of time will they keep on tolling together ?

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3240 seconds

3080 seconds

3140 seconds

3200 seconds

The number of half-pound packages of tea that can be weighed out of a box that holds 10 1/2 lb of tea is

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21

20 1/2

11

10 1/2

In ΔABC, D and E are the mid-points of AB and AC, respectively. Find the ratio of the areas of Δ ADE and Δ ABC.

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1/2

1/4

3/4

1/8

If 4x + 13=7 -2x, what is the value of x ?

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- 10/3

-3

-1

1

10/3

Sonar is used to measure?

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The speed of sound

Ocean depth

Water properties of temperature

None of these

Find the greatest number of four digits which must be added to 5231 so that the final number becomes exactly divisible by 12, 15, 27, 32 and 40.

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7929

7829

9729

7729

Which of the following is not a part of Darwinism?

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Over production

Natural selection

Inheritance for acquired characters

Competition for survival

A moderator is used in nuclear reactor in order to:

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Accelerate the neutrons

Slow down the speed of the neutrons

Increase the number of election

Decrease the number of electrons

In a certain code language COMPUTER is written as RFUVQNPC. How will MEDICINE be written in code language ?

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MFEDJJOE

EOJDEJFM

MFEJDJOE

EOJDJEFM

A car is run until the gas tank is 1/8 full. The tank is then filled to capacity by putting in 14 gal. The capacity of the gas tank of the car is

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18 gal

17 gal

16 gal

15 gal

If the side of a square is increased by 30%, its area is increased by

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49%

69%

79%

None of these

What is the value of the following expression ?

(1 + x)(1 + x²)(1 + x⁴)(1 + x⁸)(1 - x)

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1 + x¹⁶

1 - x¹⁶

x¹⁶ - 1

x⁸ + 1

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6

11

22

30

Prevailing winds affect a region's climate by

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creating desert areas.

causing more precipitation on one side of a mountain.

affecting how much precipitation it receives.

controlling the amount of solar energy it receives

9⁶ + 7, when divided by 8, would have a remainder of

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0

6

5

None of these

If m and n are whole numbers such that mⁿ = 121, then the value of (m-1)ⁿ⁺¹ is:

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1

10

121

1000

Sedimentary rocks are:

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Porous

Hard

Rough

Brittle

Resolve into factors: 81x²y² + 108xyz + 36z².

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(6xy + 9z)²

(9xy - 7z)²

(9xy + 6z)²

None of these

If the angles of a five-sided polygon are in the ratio of 2 : 3 : 3 : 5 : 5, what is the measure of the smallest angle ?

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20

40

60

80

90

A certain type of board is sold only in lengths of multiples of 2 ft. The shortest board sold is 6 ft and the longest is 24 ft. A builder needs a large quantity of this type of board in 5 1/2 ft lengths. For minimum wste the lengths to be ordered should be

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26 ft

24 ft

22 ft

12 ft

Number Series Test

81/9, 64/8, 49/7, .............................

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25/2

45/5

36/6

34/6

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