Mrs Shetty and her family went to the zoo. The price of tickets are as shown below: Child 175 Adul

M4maths Previous Puzzles

26 Nov 2019 Tickets

Mrs Shetty and her family went to the zoo. The price of tickets are as shown below:
Child 175
Adult 350

She spent exactly Rs. 2975 on the tickets. Which of the following choices could be one of the possible total number tickets (Child+Adult) did she buy?

OPtion

1) 5
2) 6
3) 7
4) 8
5) 18
6) 19
7) 16
8) 20
9) 21
10) None of these

Solution

Let the number of Child tickets be x and adult be y

175x + 350y = 2975
7x + 14y = 119
x + 2y = 17
Trying different combinations
x=1, y=8 => 9
x=3, y=7 => 10
x=5, y=6, => 11
x=7, y=5 => 12
x=9, y=4 => 13
x=11, y=3 => 14
x=13, y=2 => 15
x=15, y=1 => 16

Correct Option: 7 Best Solution (0)