Question : What is the periodicity of Halley's comet?

Option 1: 30-31 years

Option 2: 45-46 years

Option 3: 85-86 years

Option 4: 75-76 years

Question : Directions: A father's age is one more than 5 times his son's age. After 3 years, the father's age would be 2 less than four times the son's age. Find the present age of the father.

Option 1: 30 years

Option 2: 40 years

Option 3: 31 years

Option 4: 29 years

Question : Directions: Z's house is 45 m South of P's house. J's house is 50 m South of H's house. Q's house is 30 m West of Z's house. M's house is 50 m North of P's house. H's house is 30 m West of M's house. In which direction and at what distance is J's house with reference to Q's house?

Option 1: West, 30 m

Option 2: South, 50 m

Option 3: North, 45 m

Option 4: South, 45 m

Question : Directions: A man was 31 years of age when his son was born. His wife was 26 years of age when his son attained the age of 7 years. What is the difference between the man's age and his wife's age?

Option 1: 7 years

Option 2: 9 years

Option 3: 5 years

Option 4: 12 years

Question : If A's salary is 60% more than B's salary, then by what percentage is B's salary less than that of A?

Option 1: 45%

Option 2: 37.5%

Option 3: 47.7%

Option 4: 33.3%

Question : The value of $\frac{\sin ^2 30^{\circ}+\cos ^2 60^{\circ}+\sec 45^{\circ} × \sin 45^{\circ}}{\sec 60^{\circ}+{\text{cosec}} 30^{\circ}}$ is:

Option 1: $\frac{1}{4}$

Option 2: $-\frac{3}{8}$

Option 3: $\frac{3}{8}$

Option 4: $-\frac{1}{4}$