Question : A man retired from his service at the age of 60. He served for $\frac{3}{5}$th years of his retirement age. He joined his job at the age of:

Option 1: 18 years

Option 2: 20 years

Option 3: 24 years

Option 4: 36 years

Question : Four years ago, Shyam's age was $\frac{3}{4}$th times that of Ram. Four years hence, Shyam's age will be $\frac{5}{6}$th times that of Ram. What is the present age of Shyam?

Option 1: 24 years

Option 2: 20 years

Option 3: 16 years

Option 4: 15 years

Question : A man covers half part of a certain distance at 60 km/hr. He covers 40% of the remaining distance at the speed of 12 km/hr and covers the rest of the distance at the speed of 18 km/hr. What is his average speed for the entire journey?

Option 1: 24 km/hr

Option 2: $\frac{58}{3}$ km/hr

Option 3: 36 km/hr

Option 4: 40 km/hr

Question : The average age of 30 students is 20 years and the average age of 20 other students is 30 years. The average age of the total number of students is:

Option 1: 24 years

Option 2: 25 years

Option 3: 48 years

Option 4: 50 years

Question : What is the value of $\frac{\frac{1}{2} \times \frac{1}{24} \div \frac{1}{36}+\frac{1}{48}-\frac{1}{60}}{\frac{1}{12}+\frac{1}{24}+\frac{1}{36} \times \frac{1}{6}} ?$

Option 1: $\frac{1841}{119}$

Option 2: $\frac{1629}{280}$

Option 3: $\frac{1131}{124}$

Option 4: $\frac{733}{145}$

Question : What is the value of $\frac{7}{11} \div \frac{21}{33} \times \frac{5}{12}+\frac{10}{36} \times \frac{6}{11} \div \frac{18}{33}$?

Option 1: $\frac{29}{35}$

Option 2: $\frac{25}{36}$

Option 3: $\frac{28}{39}$

Option 4: $\frac{24}{41}$