1. A child was asked to add first few natural numbers so long his patience permitted.as he stopped he gave the sum as 575 . when the teacher declared the result wrong ,the child discovered he had missed one number in the sequence during addition .the number he missed was.......
1.less than 10
2. 10
3. 15
4. more than 15
2. three pieces of cakes of weights 9/2 lbs,27/4 lbs , 36/5 lbs respectively are to be divided into parts of equal weights .further each part must be as heavy as possible .if one such part is served to each guest , then what is the maximum number of guests that could be entertained?
1. 54
2. 72
3.20
4. 60
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