Answer:3
Step-by-step explanation:
Answer:
Let the income and saving rs7x and respectively 2x
then
2x=500
Step-by-step explanation:
Answer:

Step-by-step explanation:
In order to find r we have to square both sides of the equation

The *square root* sign cancels out the *squared* sign therefore:

Answer: 9 boys
Explanation:
3/11= x/33
11x= 99
x=9