The average of five consecutive numbers is n If the next two consecutive numbers are also inclu...........

Quantitative Aptitude ( CCS) Average

The average of five consecutive numbers is n. If the next two consecutive numbers are also included, the average of the seven numbers will

Remains the same

increase by 0.5

increase by 1.5

increase by 1

Let 5 consecutive numbers be x, x+1, x+2 , x+3 , and x+4
Their average = 5x+10/5 = (x+2)
Average of numbers = (5x+10) + (x+5) + (x+6)/7

= 7x+21/7 = (x+3)
So, the average increased by 1.

Hence, option 4 is the correct answer.

Submit Error

new average should be of 7 numbers