SSC CGL Model Paper 4

Concept:A total weight is possible only if it can be formed by adding some of the given box weights, using each box at most once.Explanation:Check the options using the weights $30$, $70$, $60$, and $90$.$30+70+60+90=250$, so $250$ kg is possible.$30+70+90=190$, so $190$ kg is possible.$60+70+90=220$, so $220$ kg is possible.For $200$ kg, no combination of $30$, $70$, $60$, and $90$ adds up to $200$.The nearest possible totals are $180=30+60+90$ and $220=60+70+90$.Hence, $200$ kg cannot be formed.Answer:$200$ kg cannot be the total weight.