Question

Cyndi bought an extra large pizza, cut into 12 pieces, for today's meeting of the mystery club. She ate 1/6 of the pizza yesterday afternoon. Her brother ate 1/5 of what was left last night. Cyndi knows that she needs 8 pieces of pizza for the club meeting. Help Cyndi figure out if she has ebough pizza left for the meeting.

Answer 1

Cyndi does have enough pizza for the meeting because she ends up 8 slices of pizza left.
She ate 1/6 of the pizza which left her with 10 slices left (she ate two slices of the 12).
Then her brother ate 1/5 of the pizza which means that he also ate two slices (because 1/5 of 10 is 2).
That means she has 8 slices left: enough for her meeting.

Answer 2

Thus, she has enough pizza left for the meeting.

Explanation:

It is given that, Cyndi cut pizza in 12 pieces.

Also, She ate 1/6 of pizza yesterday afternoon.

⇒ She ate =
`12*(1)/(6) = 2\ \text{pieces}`

Her Brother ate 1/5 of left pizza

⇒ Her Brother ate =
`10*(1)/(5) = 2\ \text{pieces}`

Then she has left pieces of pizza = 12 - (2 + 2) = 8 pieces

And also that much pieces she wants for the club meeting.

Thus, she has enough pizza left for the meeting.