Question

The ratio of marbles available with Ravi and Arjun is 3:7 and its addition is 100,
then find number of marbles with both of them.​

Answer 1

let

Ravi has 3x marbles

and

arjiun has 7x marbles

add the marbles

3x + 7x = 100

10 x = 100

x = 100/10

x = 10

so Ravi has 3 x 10 = 30 marbles

and

Arjun has 7 x 20 = 70 marbles