Question

There are five rooms. Each room has 50 bags of rice. All bags weigh 100 kg except in one room where the bags weigh only 99 kg. You are allowed to weigh any number of bags from any room, but only once. How will you find which room has bags weighing 99kg?

Answer 1

Answer:

Step-by-step explanation:

uppose there are 5 rooms name as R1, R2, R3, R4 and R5;

We have to pick 1 bag from R1, 2Bags from R2, 3Bags from R3 , 4 Bags from R4 and 5 bags from R5 room.

Total no. of bags we picked = 1+2+3+4+5 = 15 Bags;

According to the conditions each bag has 100kg so 1500kg is expected weight.

But there is one condition that said one room has 99kg bags;

so that we have to find the difference of 1500- total 15 bags weight;

If it is 2 kg it means R2 has 99kg bags;

If the difference is 3 kg it means R3 has 99 kg bags;

so on