Roshan bought $5$ pants at $Rs.\, 25$ each, $10$ shirts at $Rs.\, 50$ each and $15$ ties at $Rs.\, 35$ each. Find the average price of all the articles in $Rs.$ 

The average speed of a train in the onward journey is $25\, \%$ less than that of the return journey, The train halts for one hour on reaching the destination. The total time taken for the complete to and fro journey is $17\, hours,$ covering a distance of $800 \,km$. The speed of the train in the onward journey is (in $km/h$)

The average of three numbers is $28 .$ If first number is half of the second and the $3^{rd}$ number is twice the second, then the third number is?

The average of a batsman after $25$ innings was $56$ runs per innings. If after the $26^{\text {th }}$ inning his average increased by $2$ runs, then find his score in the $26^{\text {th }}$ inning?

The average age of Donald, his wife and their two children is $23\, years.$ His wife is just $4 \,year$ younger than Donald himself andxhis wife was $24\, years$ old when his daughter was born. He was $32 \,years$ old when his son was born. Th average age of Donald and his daughter is ? (in $year$)

The average monthly income of $P$ and $Q$ is $Rs.\,5050.$ The average monthly income of $Q$ and $R$ is $Rs.\,6250$ and the average monthly income of $P$ and $R$ is $Rs.\,5200.$ The monthly income of $P$ is