Ten years ago, A was half of B in age. If the ratio of their present ages is 3:4, what will be the total of their present ages?

1. 1. 35 years
   2. 30 years
   3. 28 years
   4. 24 years

Which of the following diseases is inheritable ?

1. 1. Leukaemia
   2. Colour blindness
   3. Malignancy
   4. Hepatitis

which of the following statements about AIDS is correct?

1. 1. It does not affect women
   2. It generally affects the brain
   3. AIDS virus can vary its genetic code outwitting a vaccine
   4. All those infected by a blood transfusion get AIDS within five years

The ratio of the ages of a man and his wife is 4:3. After 4 years, this ratio will be 9:7. If at the time of marriage, the ratio was 5:3, then how many years ago were they married?

1. 1. 8 Years
   2. 12 Years
   3. 15 Years
   4. 17 Years

Oncogene is responsible for _____.

1. 1. AIDS
   2. Typhoid
   3. Malaria
   4. Cancer

The ratio of the father’s age to his son’s age is 7:3. The product of their ages is 756. The ratio of their age after 6 years will be:

1. 1. 2:1
   2. 3:4
   3. 5:7
   4. 7:9

Three communicable diseases prevalent in developing countries caused by unsafe drinking water and bad sanitation are:

1. 1. Malaria, acute diarrhoea and schinstosomiasis
   2. Rheumatism, malaria and AIDS
   3. Acute diarrhoea, cancer and gout
   4. Onchocerciasis, leukemia and arthritis

Haris is 40 years old and Roshan is 60 years old. How many years ago was the ratio of their ages 3:5?

1. 1. 8 years
   2. 10 years
   3. 15 years
   4. 20 years

A person having obesity is more likely to suffer from which of the following diseases?

1. Hypertension
2. Diabetes
3. Coronary attack

1. 1. 1 and 2
   2. 2 and 3
   3. 1 and 3
   4. 1,2, and 3

The ratio of the present ages of two brothers is 1:2 and 5 years back, the ratio was 1:3. What will be the ratio of their ages after 5 years?

1. 1. 1:4
   2. 2:3
   3. 3:5
   4. 5:7