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Q:

Source of infection in diseases like Tuberculosis, Mumps and Whooping cough is

A) Direct contact B) Droplets of saliva
C) Carrier organism D) A vector
 
Answer & Explanation Answer: B) Droplets of saliva

Explanation:
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Filed Under: Biology

Q:

Excess of fat in the body is stored in

A) Adipose tissue B) Acrosome
C) Erythrocytes D) Bone marrow
 
Answer & Explanation Answer: A) Adipose tissue

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Filed Under: Biology

Q:

A vehicle born transmitted diseases are

A) Plague and Malaria B) Chicken Pox and Tetanus
C) Mumps and Common cold D) Eye infection and influenza
 
Answer & Explanation Answer: A) Plague and Malaria

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Filed Under: Biology

Q:

The energy released by 1 gram of glucose is

A) 6 kcal B) 4 kcal
C) 5 kcal D) 3kcal
 
Answer & Explanation Answer: B) 4 kcal

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Filed Under: Biology

Q:

The story of vitamins dates back to

A) 15th century B) 16th century
C) 17th century D) 18th century
 
Answer & Explanation Answer: D) 18th century

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Filed Under: Biology

Q:

Bone deformities occur due to the excess intake of

A) Phosphorus B) Potassium
C) Fatty acid D) Fluorine
 
Answer & Explanation Answer: D) Fluorine

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Filed Under: Biology

Q:

A sum of Rs. 427 is to be divided among A, B and C such that 3 times A’s share, 4 tunes B’s share and 7 times C’s share are all equal. The share of C is :

A) 84 B) 140
C) 196 D) 240
 
Answer & Explanation Answer: A) 84

Explanation:

3A = 4B = 7C = k,Then A = k/3, B = k/4 and C= k/7.

A : B : C = k/3 : k/4 : k/7 = 28:21 :12.

Cs share = Rs. [427 x (12/61)] = Rs. 84

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Filed Under: Ratios and Proportions

Q:

In a college, the ratio of the number of boys to girls is 8 : 5. If there are 160 girls, the total number of students in the college is

A) 100 B) 250
C) 260 D) 416
 
Answer & Explanation Answer: D) 416

Explanation:

Let the number of boys and girls be 8x and 5x.
Total number of students = 13x = 13 * 32 = 416.

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Filed Under: Ratios and Proportions