Question

the ages of ravi and hema are in the ratio of 5:7,four years later their ages will be in the ratio 3:4. Find their ages

Answer 1

hope you understand
it is linear equation in one variable

Answer 2

Concept Introduction:

When speaking about the past in relation to the present, the word "ago" is employed. The word "before" denotes a period of time before any specific event or action.

Given: The ages of ravi and hema are in the ratio of $5:7$,four years later their ages will be in the ratio $3:4$.

To Find: We have to find their ages.

Solution:

Therefore, Hari and Harry should have $5x$ and $7x$ ages,

As a result, four years from now, they will have the following age ratio:

$3:4$

$4(5x+4)=3(7x+4)$

$20x+16=21x+12$

$21x$-$20x$= $16$−$12$

 $x=4$

 $5x=20$ and $7x=28$

In other words, Hari and Harry are currently $20$ and $28$ years old, respectively.

Final Answer:

Ravi and Hema are currently $20$ and $28$ years old.

#SPJ2

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