Question of the day:
A father with children takes children at a time to the zoological garden, as often as he can without taking the same children together more than once. Then:
a)number of times he will go to zoological garden is 56
b)number of times each child will go to the zoological garden is 21
c)number of times a particular child will not go to the zoological garden is 35
d)All of the above
b)number of times each child will go to the zoological garden is 21
c)number of times a particular child will not go to the zoological garden is 35
d)All of the above
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