Question

Ravi had some marbles .He gave 1/7 of of the marbles to his brother and 1/3 of the remaining to his friend. If ravi has 24 marbles left with him.How many marbles did he have in the beginning ?

Answer 1

Step-by-step explanation:

let Ravi had x number of marbles;

He gave x/7 to his brother and x/3 to his friends;

Now he have 24 marbles left;

x - x/7 + x/3 = 24;

Now solving the equation;

Taking 21 as lcm;

(24x-7x-x)/x = 24;

24x = 16 x;