Question

the average of marks obtained by 120 candidate in a certain exam is 35 if the average marks obtained by passed candidate 39 failed candidates is 15 what is the number of candidate passed in the exam​

Answer 1

Answer:

100 candidates

Step-by-step explanation:

passed failed

39 15

. .

. .

35

. .

. .

35-15 39-35

20 4

passed : failed =20:4 =5:1

6parts =120

1part = 20

passed candidates is 5 parts=100