Question

Q1.Find the value of 'x'.
X: 3 :: 15:5​

Answer 1

Explanation:

Given

We have given => x :3::15:5

To Find

We have to find the value of x

$\sf\huge\bold{\underline{\underline{{Solution}}}} </p><p>Solution</p><p>$

x:3::15:5

Extremes = x and 5

product of extremes= 5x

Means = 3 and 15

Product of means = 45

Concept:

Now,Above question is of ratio and proportion.

As we know that in proportion

Product of means =Product of extremes

According to the concept:

➙45=5x

➙x= 45÷5

➙x= 9

Hence,the value of x is 9

Check:

9:3::15:5

3:1::3:1

More information=>

Difference between ratio & propertion

Ratio suggests that the the given two fractional value are equal in terms of ratio.

While, proportion suggests that the given two ratios are equal.

Answer 2

Answer:

9

Explanation:

X: 3 :: 15:5

converting into equation,

X/3=15/5

X=15/5 *3

X= 3*3

X=9

-Ans.