Question

Mark sold 218 tickets for the school play and made $1,363. Adult tickets are $8 and

student tickets are $5. How many adult tickets did Mark sell?

Answer 1

Answer: 91

Explanation:

Let adults tickets be a

Let students ticket be b.

The information in the question can be presented as an equation as:

a + b = 218 .......... i

8a + 5b = 1363 ......... ii

Multiply equation i by 5

Multiply equation ii by 1

5a + 5b = 1090 ........ iii

8a + 5b = 1363 ....... iv

Subtract iii from iv

3a= 273

a = 273/3

a = 91

Number of adult's ticket sold = 91