The average weight of $8$ persons increases by $2.5\, kg$ when a new person comes in place of one of them weighing $65\, kg$. What might be the weight of the new person? (in $kg$)
$76$
$76.5$
$85$
$85.5$
A motorist covered the first $20\, km$ of his journey in 30 mifitutes and the remaining $29\, km$ in $40\, minutes$. His average speed in $km / hr$ is:
The average of two numbers $A$ and $B$ is $20 ,$ that of $B$ and $C$ is $19$ and of $C$ and $A$ it is $21 .$ What is the value of $A ?$
A man spends $Rs.\, 1800$ monthly on an average for the first four months and $Rs. \,2000$ monthly for the next eight months and saves $Rs. \,5600$ a year. His average monthly income is (in $Rs.\,$)
The average of the two-digit numbers, which remain the same when the digits interchange their position is
A team of $8$ persons joins in shooting competition. The be marksman scored $85$ points, the average score for the team would have been $84. $ The number points the team scored was