সব প্রশ্নে ফিরে যান
Math
The average age of 30 students is 10 years and that of another group of 5 of them is 14 years. What is the average age of the remaining students ?
A) 8 years
B) 10 years
সঠিক উত্তর
C) 12 years
D) 14 years