Question

The arithmetic mean between a and 10 is 30, the value of ‘a’ should be

Answer 1

Answer:

Correct answer is 50.

Step-by-step explanation:

A+10=》---- = 30 2

=》 a+10=30×2=》a+10=60=》a= 50

Answer 2

The arithmetic mean between a and 10 is 30 then the value of a = 50

Given :

The arithmetic mean between a and 10 is 30

To find :

The value of a

Solution :

Step 1 of 2 :

Form the equation

Here it is given that the arithmetic mean between a and 10 is 30

By the given condition

$\displaystyle \sf{ \frac{a + 10}{2} = 30 }$

Step 2 of 2 :

Find the value of a

$\displaystyle \sf{ \frac{a + 10}{2} = 30 }$

$\displaystyle \sf{ \implies a + 10 = 60 }$

$\displaystyle \sf{ \implies a = 60 - 10 }$

$\displaystyle \sf{ \implies a = 50 }$

The value of a = 50

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