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The pharmacy has an old scale which has only two measuring weights 30 grams and 5 grams.
How can you divide 300 grams of powder medicine into 3 groups, one 150 grams, one 100 and the other 50 grams. You can only weigh 3 times.
Weight 25 grams power with the help of 30 and 5 grams.
Left side put 30 gram weight and right side put 5 gram weight + 25 gm Power-----1 times weight---Put it in the bag
In the Second time Put the 25 gm powder in the left side with 30 gm weight.and do not touch 5 gm weight from right side. So now u will be able to weight 50 gm Power.---Put it in the second bag.---2nd times
In the third time Put the 50 gm also in the left side with out touching the other weights.--Now u could measure 100 gm.--3rd times
the rest of the power will be 125 gm as the total quantity is 300 gm. Open the 25 gm bag in it so that u will have 3 packet
50 + 100 +150
100 coins are lying flat on a table. 10 of them are heads up and 90 are tails up. How can you split the coins into two piles such that there are same number of heads up in each pile?
Using exactly three matchsticks, can you divide the area into two equal parts?
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