plz............ explain......
1)Average age of a group of 10 students is 20 years,
if average age increased by two years when two new
students are joined then the average age of two new students
a) 84 b) 64 c) 32 d) 42
2)If x is inversely related with square of y for x = 1 and y = 2 then find the value of x when y = 6
a) 3 b) 9 c)1\3 d)1\9
CAclubindia
