Rithvik's Blog 11+

Sophie has 3 boxes of marbles. The first box has twice as many marbles as the second box. The third box has 12 fewer marbles than the second box. Altogether, the three boxes have 96 marbles. How many marbles are in each box?

There are some chairs in a hall. If 4 more people come, there won’t be enough chairs and 3 people will have to stand. But if 3 people leave, there will be 5 chairs left empty. How many chairs are there in the hall?