The average price of three items of furniture is $Rs15000$. If their prices are in the ratio $3:5:7$, the price of the cheapest item is:

Q. The average price of 3 items of furniture is 15000 Rs. If the cost of these items are in the ratio 3: 5: 7, then the price of the costliest item is?

Q. In a group of 5 items, the price of the costliest item is 20% more than the average price of all 5 of them. The price of the cheapest item is 20% less than the average price of all 5 of them. What is the ratio of the average of all 5 of them to the average of the middle three of them?

Q.

Price of an item has decreased in the ratio 6 : 5. If old price is ₹18, decreased price is ₹ ____

Q. The cost price of item $B$ is Rs.$200$/- more than the cost price of item $A$. Item A was sold at a profit of $20$% and item B was sold at a loss of $30$%. If the respective ratio of selling prices of items $A$and $B$ is $6:7$, what is the cost price of item $B$?

Q. The ratio of old price and new price of an item is 3:4. If old price is $15, new price is ____