Question

The sum of her and her daughters age is 50. Five years ago, her daughters age was three times her age. Find the solution of the following using cross multiplication method​

Answer 1

Step-by-step explanation:

The sum of her and her daughters age is 50. Five years ago, her daughters age was three times her age. Find the solution of the following using cross multiplication method

Answer 2

Answer:

Lmfao I know I copy pasted XD

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Questions & Answers

CBSE

Mathematics

Grade 9

Arithmetic of Comparing Quantities



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The sum of the present ages of the mother and daughter is 50 years. After 20 years, the mother’s age will be twice her daughter’s age at the time. Find their present ages.

Answer

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Hint: We will first let the present ages of mother and daughter be xx and yy. Then, form the equations corresponding to the given conditions. We will solve both the equations to find the present ages of mother and daughter.

Complete step by step Answer:

First, let the present age of the mother be xx and the present age of the daughter be yy

Now, we are given that the sum of the present ages of the mother and the daughter is 50 years.

Therefore, we can write it as, x+y=50x+y=50 (1)

The next condition is after 20 years.

But after 20 years, the age of the mother will be x+20x+20, and the age of the daughter will be y+20y+20

Now, we are given that the mother’s age will be twice her daughter’s age.

That is, 

x+20