Question 1
The average age of a family of 4 members (Kanika, Aditi, Everly, Jaideep) is 15.8 years. If Kanika (age 12) leaves the family, what will be the new average age?
Total age = 15.8 × 4 = 63
After Kanika leaves: 63 - 12 = 51
New average = 51 ÷ 3 = 17
After Kanika leaves: 63 - 12 = 51
New average = 51 ÷ 3 = 17