Question

A man has 25 cows. All cows are numbered 1 to 25. All cows provide as many liters of milk as their number. That is, cows of number 5 give 5 liters and cows of number 8 provide 8 liters of milk.
The man has 5 sons. Each son has to give five cows. However, each son should get the same amount of milk.
So, what number of five cows should be given to each son?
Who should be inteligent.
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Answer 1

Answer

total amount of milk produced by the total no of cows is 1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25=325

325/5 = 65

each son will get up to 65 litres of milk by the total no of cows they have

the first son will get cows = 25,24,16 =65( total three cows of the no 25,24,16)

the 2nd son will get cows = 18,15,14,5,6,7=65 (total 6 cows of number 18,15,14,5,6,7 )

the 3rd son will get the cows = 20,11,12,13,1,8 =65( no of cows = 6 )

the 4th son = 23,22,17,3 =65( no of cows = 4)

the 5th son = 21,19,4,2,9,10=65( no of cows = 6 )

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