The average daily wages of $A, B$ and $C$ is $Rs.\, 120 .$ If $B$ earns $Rs.\,40$ more than $C$ per $day$ and $A$ earns double of what $C$ earns per $day,$ the wages of $A$ per $day$ is (in $Rs.$)
$80$
$120$
$160$
$100$
The mean daily profit made by a shopkeeper, in a month of $30\, days,$ was $Rs.\,350.$ If the mean profit for the first $15\, days$ was $Rs.\, 275,$ then the mean profit for the last $15\, days$ would be (in $Rs\,$)
The average of $12$ results is $15,$ and the average of the first two is $14.$ What is the average of the rest?
The average of $n$ numbers $x_{1}, x_{2}, \ldots, x_{n}$ is $x$. Then, the value of $\sum \limits_{i=1}^{n}\left(x_{i}-\bar{x}\right)$ is equal to
The sum of three consecutive even numbers is $28$ more than the average of these three numbers. Then the smallest of these three numbers is
There are three baskets of fruits. The $1^{st}$ basket has twice the number of fruits in the $2^{nd}$ basket. The $3^{rd}$ basket has three-fourths of the fruits in the first. The average of the fruits in all the baskets is $30 .$ What is the number of fruits in the first basket ?