Eighty five children went to an amusement park where they could ride on the…
2023202520232024
Eighty five children went to an amusement park where they could ride on the merry - go round, roller coaster, and Ferris wheel. It was known that 20 of them took all three rides, and 55 of them took at least two of the three rides. Each ride cost ₹1, and the total receipt of the amusement park was ₹ 145. How many children did not try any of the rides?
- A.
15
- B.
20
- C.
30
- D.
25
Attempted by 6 students.
Show answer & explanation
Correct answer: A
Since there are 85 students, and 55 of them tried two or more rides, and 20 tried exactly three rides.
Hence, students who tried exactly two rides = 55-20 = 35
As, each ride cost ₹1, and the total receipts collected = 145, receipts from single rides = 145 - (20*3 + 35*2) = 15. Hence, studets who tried exactly one ride = 15
Children did not try any of the rides = 85 - (35+20+15) = 15