Question:
The average of 5 consecutive number is n. If the next two consecutive numbers are also included, then the average will .....
Aremains same
Bincrease by 1.5
Cincrease by 1
Dincrease by 1.4
Answer:
C. increase by 1
Explanation:
Let the 5 consecutive numbers be x, x+1, x+2, x+3, x+4 Average= (5x+10)/5= x+2=n Average of 7 consecutive numbers = (7x+21)/7= x+3=n+1 i.e, the average is increased by 1