People who take megadoses of vitamins and minerals should take care: though beneficial in small quantities, in large amounts these substances may have--- effects.

2 large and 1 small pumps can fill a water tank in 4 hours. One large and 3 small pumps can also fill the same water tank in 4 hours. how many hours will it take for 3 large and 4 small pumps to fill the tank?

A

2 hours

B

2.5 hours

C

3 hours

D

3.5 hours

2 large and 1 small pumps can fill a water tank in 4 hours. 1 large and 3 small pumps can also fill the same water tank in 4 hours . How many hours will it take for 3 large 4 small pumps to fill the tank?

A

2 hours

B

2.5 hours

C

3 hours

D

3.5 hours

Many breakfast cereals are fortified with vitamin supplements , some of these cereals provide 100 percent of the recommended daily requirement of vitamins. Nevertheless, a well -balanced breakfast, including a variety of foods is a better source of those vitamins than are such fortified breakfast cereals alone.

A

In many foods , the natural combination of vitamins with other nutrients makes those vitamins more usable by the body than are vitamins added in vitamin supplements.

B

People who regularly eat cereals fortified with vitamin supplements sometimes neglect to eat the foods in which the vitamins occur naturally.

C

Foods often mist be fortified with vitamin supplements because naturally occurring vitamins are removed during processing .

D

Unprocessed cereals are naturally high in several of the vitamins that are usuallly added to fortified breakfast cereals.

In each of the questions 20-21 , there are two quantities : Quantity A and Quantity B. You are to compare those quantities . Quantities A 5 (a-7) Quantity B 5a - 7

A

Quantity A is greater

B

Quantity B is greater

C

Both quantities are equal

D

It is impossible to determine

In a certain fashion house, which has four sizes of a specific shirt, there is one-third as many small shirts as medium shirts, and 1/2 as many large shirts as small shirts. If there are as many X-large shirts as large shirts, what percent of the shirts in the store are medium?

A

30%

B

40%

C

50%

D

60%

The solid brick shown is made of small square shaped bricks of side 1. when the large brick is disassembled into its component small bricks. the total surface area of all the small bricks is how much greater than the surface area of the large brick?

A

32

B

40

C

60

D

72

Both coffee and tea have beneficial as well as ___ side- effects; while they stimulate the heart and help overcome fatigue, they also ___ insomnia and other nervous disorders.

A

Injurious, exacerbate

B

Malignant, interrupt

C

Salutary, heighten

D

Invent, introduce

Organic Substances which, in very small amounts, control growth and development called

A

vitamins

B

hormones

C

enzymes

D

None of the above

Among the many substances manufactured commercially by means of ________ are acetic acid, acetone, butanol, lactic acid and several vitamins.

A

Viruses

B

Bacteria

C

Fungi

D

Yeast

"If you take care of the pence, the pounds will take care of themselves ". Compound form of this sentence is:

A

Take care of the pence and the pounds will take care of themselves .

B

Take care of the pence and the pounds and they will take care of themselves

C

Take care of the pence and the pounds so they will take care themselves .

D

Take care of the pence and the pounds so they will take care themselves

People who take megadoses of vitamins and minerals should take care: though beneficial in small quantities, in large amounts these substances may have--- effects.

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