Question

Practice set 5.2
(1) In an envelope there are some 5 rupee notes and some 10 rupee notes. Total amount of
these notes together is 350 rupees, Number of 5 rupee notes are less by 10 than number
of 10 rupee notes. Then find the number of 5 rupee and 10 rupee notes​

Answer 1

Answer:

Let the number of 5 rupee note be x

so, therefore no. of 10 rupee would be = x +5.

The amount she has:-

from 5 rupee note : 5 * x = 5x

from 10 rupee note : 5 ( x +10 )= 5x + 50

Hence total money evelope has :-

5x + 5x+50 = 350

10x + 50 = 350

10x = 350-50

10x= 300

x = 30

The no. of 5 ruppe note =x =30

The number of 10 rupee note = x + 10

= 30+ 10

= 40