The average age of a group of 40 students… | Answer

Subject

Quantitative Aptitude

Topic

Age

ক)

খ)

গ)

ঘ)

X = 37*40 = 1480 X = 38*41 = 1558 T age = 1558 – 1480 = 78 Aftr 2 yrs = 78+2 = 80

The average age of a group of 40 students is 37 yrs. If a teacher is included then the average age rises by 1, then find the age of the teacher after 2 years?