Question

The average of three numbers is 24.If one of the number is 18 and other number is 29, find the third number

Answer 1

Answer:

The third number is 30

Step-by-step explanation:

First we will multiply the average with the numbers 24 × 3 = 72

Then we will add the two numbers 18 + 24 = 42

At last we will subtract 72 - 42 = 30

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Answer 2

$\huge\mathfrak\green{Given:-}$

• Average of three number is 24.
• One of them number is 18.
• Other or second number is 29.

$\huge\mathfrak\red{To \: Find :-}$

• Third number

$\huge\mathfrak\blue{Let \: us \: assume}$

• let the third number be x.

$\huge{Solution \: : }$

$average \: = \frac{sum \: of \: all \: observation }{total \: no. \: of \: observation}$

$24 = \frac{18 + 29 + x}{3}$

$24 = \frac{47 + x}{3}$

$24 \times 3 = 47 + x$

$72 = 47 + x$

$72 - 47 = x$

$25 = x$

$\small\mathfrak{so \: the \: third \: number \: is \: 25}$

$\huge\mathfrak\pink{Thank \: \: You}$