Quantitative

21. 

1. 1

2. 2

3. 4

4. 12

5. 16

22. What was the original price of an item if a discount of 20 percent reduced the price to Rs.100?

1. Rs.80

2. Rs.120

3. Rs.125

4. Rs.150

5. Rs.250

23. The sum of 0.629, 4.3 and 2 is:

1. 0.1259

2. 6.74

3. 12.59

4. 6.929

24. In a basket containing 180 apples, 9 are spoiled. What percent of the apples in the basket are not spoiled?

1. 95%

2. 90%

3. 50%

4. 25%

5. 20%

25. What is 5% of 20%?

1. 1%

2. 10%

3. 100%

4. 0.1

26. When -4 is added to -4, the sum is:

1. -8

2. +8

3. -1

4. +1

5. +20

27. 6 men can do a piece of work in 12 days. How many men are needed to do the work in 18 days?

1. 3 men

2. 6 men

3. 4 men

4. 2 men

28. The average of the first five multiples of 7 is:

1. 20

2. 21

3. 28

4. 30

29. The number missing in the series 2, 6, 12, 20, ?, 42, 56, 72 is:

1. 24

2. 30

3. 36

4. 38

5. 40

30. Ahmad is 67. His son Raza is 29. In how many years will Raza be exactly half his father’s age?

1. 2

2. 5

3. 7

4. 9

5. 12

Chemistry

31. The rate of a chemical reaction is:

1. determined from a balanced chemical equation

2. the change in concentration of products and reactants in a certain amount of time

3. not possible to determine experimentally

4. expressed in units of time

32. In neutralization:

1. the base is neutralized

2. the acid is neutralized

3. a salt is formed

4. all of the above

33. An alkene with 16 carbons has a molecular formula of:

1. 

2. 

3. 

4. 

34. Splitting of atoms is also called:

1. merging

2. moderating

3. fusion

4. fission

35. Which formula represents sodium sulfate?

1. 

2. 

3. 

4. 

Physics

36. As the temperature of a solid increases, its specific heat:

1. increases

2. decreases

3. increases, then decreases

4. decreases, then increases

5. remains the same

37. Radiation is the chief method of energy transfer:

1. from the Sun to an Earth satellite

2. from a gas flame to water in a teakettle

3. from a soldering iron to metals being soldered

4. from water to an ice cube floating it

5. from a mammal to the surrounding air

38. If a vibrating body is to be in resonance with another body, it must:

1. be of the same material as the other body

2. vibrate with the greatest possible amplitude

3. have a natural frequency close to the natural frequency of the other body

4. vibrate faster than usually

5. vibrate more slowly than usually

39. If the distance between a point source of light and a surface is tripled, the intensity of illumination on the surface will be:

1. tripled

2. doubled

3. reduced to

4. reduced to

5. reduced to

40. In a cathode ray tube:

1. electrons go from cathode to plate and then from plate to cathode

2. electrons go from cathode to plate only

3. electrons go from plate to cathode only

4. electrons go from cathode to plate and protons go from plate to cathode

5. protons go from cathode to plate and electrons go from plate to cathode