Question

16. A bag contains Rs.5 and Rs. 10 currency notes. Value of the total notes
in the bag is Rs.180. The number of Rs.5 notes in the bag is of the
number of Rs.10 notes. Find the number of notes of each
denomination. ​

Answer 1

Answer : 60

no. of Rs.5 note = X

no. of Rs.10 note = Y

as condition occurred

X = Y

and

5X + 10Y = 180 .... equation (1)

because X = Y

so

5Y + 10Y = 180

Y+2Y = 36

3Y = 36

Y = 12

so X = 12

from equation (1)

5(12) + 10(12)

= 60 + 120

= 180.

So the no. of Rs.5 notes = 12

and no. of Rs.10 notes = 12.

Answer 2

Answer:

Step-by-step explanation:

no. of Rs.5 note = x

no. of Rs.10 note = y

x = y and

5x + 10y = 180 .... Equation….(1)

because y = y therefore 5y + 10y

= 180y+2y

= 363y = 36Y

= 12

therefore x = 12 from equation…(1)

5(12) + 10(12)= 60 + 120= 180.

So the no. of Rs.5 notes = 12

no. of Rs.10 notes =12