Question

Rayaan was five times as old as
Saanvi, 4 years ago. At present
Rayaan is 3 times as old as
Saanvi. What is Saanvi's
present age?​

Answer 1

Answer:

Saanvi's present age = x = 15 years

Rayaan's present age = 3x = 45 years

Step-by-step explanation:

Let Saanvi's present age = x

So, Rayaan's present age = 3x

4 years ago,

Saanvi' age will be = (x - 5)

Rayaan's age will be = {4 (x-5)} = 3x - 5

=> 3x - 5 = { 4 ^ (x-5) }

=> 3x - 5 = 4x - 20

=> 3x - 4x = -20 + 5

=> -x = -15

=> x = 15

Saanvi's present age = x = 15 years

Rayaan's present age = 3x = 45 years

Answer 2

Given:

↬Rayaan was five times as old as Saanvi, 4 years ago.

↬At present Rayaan is 3 times as old as Saanvi

To Find:

↬Saanvi's present age?

Solution:

let saanvi's present age be x

and Rayaan's present age be 3x

so, 4 years back their ages will be,

Saanvi : x-5

Rayaan : 3x-5

$\sf : ⟹3x - 5 = 4(x - 5) \: \: \\ \\ \sf : ⟹3x - 5 =4x - 20 \: \: \: \\ \\ \sf : ⟹3x - 4x = - 20 + 5 \\ \\ \sf : ⟹ \cancel - x =\cancel - 15 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \sf : ⟹x = 15 \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

__________________________________________

Saanvi's age = 15(x)

Rayaan's age = 45(3x)

$\blue{ \underline{ \boxed{ \pink{ \mathfrak{ \therefore saanvi's \: present \: age = 15 \: rayaan's \: present \: age = 45}}}}}$

hope this helps.!!