Question

तीन संख्याओं का औसत 60 है पहली संख्या अन्य दो संख्याओं के योग का 1/8 हो तो पहली संख्या क्या होगी

Answer 1

Answer:

20

Step-by-step explanation:

Answer 2

The unknown number is 20.

Step-by-step explanation:

Let three numbers are x, y and z respectively.

First number is 1/8 of sum of other two numbers.

$x=\dfrac{1}{8}(y+z)$

$8x=y+z$                 .... (1)

It is given that the average of three numbers is 60.

$\dfrac{x+y+z}{3}=60$

$x+y+z=180$

Using equation (1) we get

$x+8x=180$

$9x=180$

Divide both sides by 9.

$x=20$

Therefore, the unknown number is 20.

#Learn more

Average of 43, 57, 68, 32, 97 and x is 63. What is the value of x?

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