Question

The ratio of number of 10 rupee to 20 rupee notes in a purse is 3:4 if there are total 84 notes in the purse ,then how much money is there in the purse

Answer 1

Answer:

1320

Step-by-step explanation:

Let no. of 10 rupee notes be 3x and no. of 20 rupee notes be 4x.

3x+4x=84 (as there are total 84 notes in the purse)

7x=84

x=84/7

x=12

then, no. of ten rupee notes = 3x= 3×12=36

and, no. of twenty rupee notes= 4x=4×12=48

Total money in the purse= (36×10)+(48×20)

=360+960

=1320