Rachel has 60 scones. she sells them to robbie , cameron , lou’s , tom and charlie in that order. each customer buys more scones than the last and the increase is the same number in each case . robbie and cameron’s combined total number of scones is three sevenths of the total of louis , tom and charlie . how many scones does each boy buy ?

Suppose robbie buys x scones then according to the questioncameron will have x+y
..lou's will have (x+y)+y=x+2y ...
Tom=x+3y
Charlie=x+4y
now as we know that the combines scones of robbie and Cameron is 3/7 times of total of louis
x+(x+y)=3/7 (x+3y+x+2y+x+4y)solve this ...and this will be your 1st equation...and second equation will be x+x+2y+x+3y+x+4y=60And solve both equation simultaneously and then you will have the answers of x and y the put the values of x and y in each of the equation that i have written above for each person