Question

14. A school awarded 40 medals for football, 15 for basketball and 18 for cricket. If these medals were bagged by total 60 students and only 3 students got medals in all the three games, how many students got medals in exactly two of the three games.​

Answer 1

Answer:

7 students got medals in exactly 2 of the three games

Step-by-step explanation:

total medals = 40+15+18 =73 medals

3 students got 3 medals = 9 medals

now medals remaining = 73-9 = 64 medals

now students remaining = 60-3 = 57 students

let the no of students who got single medal be x

and no of students who got 2 medals be 57-x

x × 1 +(57-x)× 2 =64

x= 50

57-x = 57-50 = 7 students

Answer 2

solution class 11 chapter 1 sets