Question

answer with explanation then I will mark you as brainliest​

Answer 1

Answer:

90

Step-by-step explanation:

Let x be the number of notes

1x + 10x + 20x = 930

31x = 930

x = 930/31

x = 30

Rs 1 = 1×30 = 30

Rs 10 = 10×30 = 300

Rs 20 = 20×30 = 600

Totally 90 notes.