There are 76 white and silver cards in Box N. There are 52 white and brown cards in Box P. The number of silver cards in Box N is four times the number of brown cards in Box P. The number of white cards in both boxes is the same.
- How many brown cards are there in Box P?
- Find the total number of white cards in both boxes.
(a)
Number of silver cards = 4 u
Number of brown cards = 1 u
White cards + 4 u = 76 --- (1)
White cards + 1 u = 52 --- (2)
(1) - (2)
4 u - 1 u = 76 - 52
3 u = 24
1 u = 24 ÷ 3 = 8
Number of brown cards
= 1 u
= 8
(b)
Number of white cards in Box P
= 52 - 8
= 44
Number of white cards in both boxes
= 2 x 44
= 88
Answer(s): (a) 8; (b) 88