17. Raghu has enough money to buy 75 machines worth Rs 200 each. How many machines
can he buy if he gets a discount of Rs 50 on each machine?
Answers
The answer for the given riddle is pencil.
Explanation:
The hints for the riddle are iam from a mine and wood is major hint.
Generally natural resources like coal, diamond, graphite, iron are from mines.
In the above natural resources generally graphite is surrounded by wood and daily used by us as pencil for writing.
Answer:
Let x be the number of machines he can buy if a discount of Rs.50 is offered on each machine.
Number of machines 75 x
Price of each machine ( in Rs ) 200 150
Since, Raghu is getting a discount of Rs.50 on each machine, the cost of each machine will get decreased by Rs.50
If the price of a machine is less, he can buy more number of machines.
It is a case of inverse variation.
∴ 75×200=x×150
⇒ x=
150
75×200
⇒ x=
150
15000
⇒ x=100
∴ The number of machines ha can buy is 100.