Three-fifth of the square of a certain number is 126.15. What is the number ?
A). 14.5
B). 75.69
C). 145
D). 210.25
The average of 12 numbers is 24. If each number be multiplied by 6. Find the average of new set of numbers?
A). 144
B). 121
C). 116
D). 109
The average weight of 14 students in a class is increased by 3 kg. When a student who weights 48 kg is replaced by a new student. Find the weight of new student?
A). 90 kgs
B). 80 kgs
C). 70 kgs
D). 60 kgs
The average weight of 8 persons increases by 1.5kg when a person weighting 65kg is replaced by a new person. What could be the weight of the new person?
A). 75 kgs
B). 76 kgs
C). 77 kgs
D). 78 kgs
In a hostel of 12 boys and some girls, an average consumption of rice per month is 12 kg, while the Average consumption for boys is 16 kg per head and for girls 8 kg per head. The number of girls in T
A). 6
B). 8
C). 10
D). 12