Correct option is A
Given : Cumulative frequencies : 3, 22, 35, 47, 55, 80 Formula Used : N=Total frequency Median position=2N Solution : N=80 2N=40 Median class=30−40 x=40 Class frequencies: 0−10=3 10−20=19 20−30=13 30−40=12 40−50=8 50−60=25 Modal class=50−60 y=50 2x+y=2(40)+50=130 Final Answer : 130