Answer:
sister got = 150 beads
Step-by-step explanation:
total beads = 240
friend got = 1/6 of total beads
= 1/6 * 240 = 40 beads
remaining beads = 240 - 40 = 200 beads
sister got = 3/4 of the remaining beads
= 3/4 * 200 = 150 beads
thus,
sister got = 150 beads