Q. 124.0( 4 Votes )

My uncle changed a 1000 rupee cheque from a bank in the form of 5 rupee and 10 rupee notes. If he received 137 notes in total then find the number of 5 rupee notes that he got.

Answer :

Let the number of 5 rupee notes got by uncle be x.

As it is given he gets total of 137 notes, so number of 10 rupee notes he get will be


137-x


It is given adding these notes the total amount should be 1000.


Hence the equation becomes,


5(x)+10(137-x)=1000


5x+1370-10x=1000


1370-5x=1000


1370-1000=5x


5x=370



So uncle got 74,5-rupee notes,


And 137-x=137-74=63,10-rupee notes.


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