Question

the average of 7.5,3.2,11.3,20.5 and x is 10. find the value of x option -(a) 5.5(b)4(c)6.5(d)7.5 ​

Answer 1

Answer:

7.5 (Option d)

Step-by-step explanation:

Given the average of 7.5,3.2,11.3,20.5 and x is 10.

It means (7.5 + 3.2 + 11.3 + 20.5 + x)/5 = 10

=> 7.5 + 3.2 + 11.3 + 20.5 + x = 5×10

=> 7.5 + 3.2 + 11.3 + 20.5 + x = 50

=> 42.5 + x = 50

=> x = 50 - 42.5

=> x = 7.5

So, option d is the correct answer

Answer 2

Answer:

x=7.5

Step-by-step explanation:

Hope it's correct thank you please mark me as a brain lies