B is the correct answer not totally sure tho hope this helps
The answer is 18 because you keep 6/1 Chang division to multiplication then flip 1/3 to 3/1 then solve it which again the answer is 18 ;)
Answer:
10rupee notes are 11
20rupee notes are 22
Step-by-step explanation:
Let 10-rupee note be x
20-rupee note will be x + 11
The equation will be
10x + 20(x + 11) = 550
10x + 20x + 220 = 550
30x = 330
x = 330/30 = 11 = 10rupee notes
y = 11+11 = 22 = 20rupee notes
