Question

. If 10, x, 15 and 3 are in proportion then find the value of x.

(a) 2 (b) 6 (c) 8 (d) none of these​

Answer 1

Answer:

If 10, x, 15 and 3 are in proportion then find the value of x.

Ans is 2

Answer 2

Given:

10, x, 15 and 3 are in proportion

To find:

The value of x

Solution:

The required value of x is 2. (Option a)

We are given that the terms are in proportion to one another.

So, the terms can be written as follows-

10:x::15:3

Now we know the mean terms' product is equal to the extreme terms' product.

Mean terms= x, 15

Extreme terms=10, 3

Using the values, we get

10×3=15×x

30=15x

30/15=x

2=x

Therefore, the required value of x is 2.