Question

Tony and Sony were playing with marble.in the first round Tony lost 7 marbles .in the second round he won 16 marbles. in the third round he again lost 4 marbles,they stopped the game and count the marbles .he found that he had 25 marbles left with him .how many marbles had he brought to play the game ​

Answer 1

the answer is 30 marble

add the negatives means lost marbles 7+4=11 and then add 16 +25=41 subtract two of them you will get 30

Answer 2

let the total amount = x

1st round=x-7

2nd=(x-7)+16

3rd=(x-7)+16-4

adding all

x-7+x+9+x+5=25

3x+7=25

3x=25+7

x=30