What should be subtracted from each term of the ratio $19: 23$ to make it equal to the ratio $3: 4$?

Present ages of Sameer and Anand are in the ratio of $5 : 4$ respectively. Three years hence,the ratio of their ages will become $11 : 9$ respectively. What is Anand's present age in years?

$A$ sum of money is to be distributed among $A, B, C, D$ in the proportion of $5: 2: 4: 3$. If $C$ gets $Rs. 1000$ more than $D$,what is $B$'s share (in $Rs.$)?

How many one-rupee coins,$50$-paise coins,and $25$-paise coins,whose numbers are in the ratio $5:7:12$,are together worth $₹ 115$?

An amount of money is to be divided among $P$,$Q$,and $R$ in the ratio of $3:5:7$,respectively. If the amount received by $R$ is ₹ $4,000$ more than the amount received by $Q$,what will be the total amount (in ₹) received by $P$ and $Q$ together?

At present,the ratio between the ages of Arun and Deepak is $4:3$. After $6$ years,Arun's age will be $26$ years. What is the age (in years) of Deepak at present?