Question

Find x if 25, 35, x are in continued proportion.
7. Anant covers a distance of 225 km in 5 hours in his car. How much distance will he be able
to cover in 7 hours? Find the answer using proportions.
8/ The ratio of income and expenditure of a family is 10:9. Find the savings if the income of
the family is 60,000.
9. The ratio of trousers and shirts in the wardrobe of Mr Hussain is 3:5. If the number of shirts
is 20, find the number of trousers in the wardrobe.
Unitary Method
The method of finding the value of one unit and then the value of the required number of units
known as the unitary method. Let's consider the following situation.
If the cost of 5 kg apples is 7200, what is the cost of 3 kg apples? Here, we first need to find t
cost of 1 kg apple and then the cost of 3 kg apples.
of 5 kg apples = 200​

Answer 1

7. distance covered in 5 hour= 225 km

distance it covered in 1 hour= 225/60

distance it will cover in 7 hours= 225/60*7=1575/60 km

8.  10x = 60000

x = 60000/10 =6000

9x = 6000*9 = 54000

savings = 60000-54000 = 6000

9.ii

Let the ratio be 3x and 5x

If

5x=20

Then.

x=20/5

x=4

Number of trouser =3x=3*4=12

I hope this much will help you