SSC Selection Post 2020 Higher Secondary Level Question Paper (06 Nov, 2020) (Shift 3)

Two persons $A$ and $B$ can complete a task in $10\text{ days}$ and $15\text{ days}$, respectively. They work together and $A$ leaves $5\text{ days}$ before the task is completed. The number of days taken to complete the whole task is:

In a class of $88$ students, the number of girls is $20\%$ more than the number of boys. The average height of the boys is $164\text{ cm}$, and the average height of girls is $4\text{ cm}$ less than the average height of all the boys and girls in the class. What is the average height (in $\text{cm}$) of all the students in the class?

When $x$ is added to each of $10,23,15$ and $33$, the sums obtained in this order are in proportion. The value of $(x+5)$ is:

A car travels for $11\text{ hours}$. For the first $100\text{ km}$, the car travels with a certain speed, and then it increases its speed by $15\text{ km/h}$ to cover the remaining $280\text{ km}$. The time (in hours) it takes to travel the $100\text{ km}$ part is:

If the $6$ -digit number $479xyz$ is exactly divisible by $7,11$ and $13$, then the product of the digits $x,y$ and $z$ will be: