Question

Q 46. If 3.6m = 0.09n, then find (2m + n): (m + 2n).
Ops: A. О 14/27
B. 041/81
C. 36/159
D. O 38/79​

Answer 1

Given:

   3.6m = 0.09n

To Find:

  find (2m + n): (m + 2n)

Step-by-step explanation:

• 3.6m = 0.09n
• n = $\frac{3.6}{0.09} m$
• n = 40m
• Lets find the value of (2m+n) first
• Put the value of n in this
• 2m + 40 m = 42m
• Now, we will find the value of (m + 2n)
• Put the value of n in this
• m + 2×40 m = m + 80m = 81 m

• Now, we will find the ratio of  (2m + n): (m + 2n)

• $\frac{(2m + n)}{(m + 2n)}$

• Putting the values in it

• $\frac{(2m + n)}{(m + 2n)} = \frac{42}{81}$

So, the correct option is (B)