Olivia wanted to invite 542 guests to her wedding. Each of her 7 friends helped her to make 25 invitation cards. She made the rest of the cards herself.
- How many invitation cards did Olivia's friends help her make?
- Assuming that Olivia needed a card for each guest, how many more cards did Olivia have to make by herself?
(a)
Number of invitation cards that her friends made
= 7 x 25
= 175
(b)
Number of invitation cards that Olivia made
= 542 - 175
= 367
Answer(s): (a) 175; (b) 367