Question

Two numbers are in the ratio 3:17.if the first is 12,what is the other

Answer 1

To find : other number in ratio .

Given : Two numbers are in the ratio $3 : 17$ .

            First number is $12$ .

Solution :

• Let , number in ratios be $3x$ , $17x$ .
• First number is  $12$ i.e. $3x = 12$
• Therefore , we find value of $x$,

        $3x = 12 \\x = 4$

• Now , finding the second number i.e. $17x$ .
• Substituting the values we get , $17x = 17 \times 4 = 68$

Hence , second number is $68$ .

Answer 2

The other number is 68

Given :

• Two numbers are in the ratio 3 : 17
• The first is 12

To find :

The other number

Solution :

Step 1 of 2 :

Form the equation with given condition

Here it is given that two numbers are in the ratio 3 : 17

Let the numbers are 3x and 17x respectively

Now it is given that the first is 12

So by the given condition 3x = 12

Step 2 of 2 :

Find the other number

3x = 12

$\displaystyle \sf{ \implies x = \frac{12}{3} }$

$\displaystyle \sf{ \implies x = 4 }$

Hence the other number

= 17x

= 17 × 4

= 68

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