Question 11
Lan has blue, red and yellow marbles.
• If she buys twice as many blue marbles as she currently has, blue marbles will be $2/5$ of the new total.
• If instead she buys three times as many red marbles as she currently has, red marbles will be $3/5$ of the new total.
She originally has 275 marbles. How many are yellow?
• If she buys twice as many blue marbles as she currently has, blue marbles will be $2/5$ of the new total.
• If instead she buys three times as many red marbles as she currently has, red marbles will be $3/5$ of the new total.
She originally has 275 marbles. How many are yellow?