1.

5 In a piggy bank, there are 20-rupee notes, 10-rupee notes, ande notes. The number of 5-rupee notes exceeds two times the ten-notes by one. The 20-rupee notes are 5 less than the ten-rupeerates. If the total value of the money in the bank is 185, determine thenumber of each variety of notes.

Answer»

Let there be X 10Rs noteno of Rs 5 note= 2X+1no of Rs 20 note= X-5Sum of the notes= 3X-4value of notes= 10*X+ 5(2x+1)+20(X-5)=185 ⇒ 10X +10X+5+20X-100=185 ⇒ 40X= 280 ⇒ X=7Rs 10 Qty 7Rs 5 Qty 15Rs20 Qty 2

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