TCS Company Logical Reasoning Logical Sequences

A mother with 7 children takes three at a time to a cinema. she goes with every group of three that she with distinct can form. How many times can she go to the cinema with distinct groups of three children. How many times a individual child will go to cinema before the group is repeted.

Read Solution (Total 4)

7C3=35 ways mother can go to cinema with distinct groups of three children
6C2=15 times a individual child will go to cinema before the group is repeated
this can also achieved by considering 1,2,3,4,5,6,7 as children
then writing the possibilities of 3 children
{123,124,125,126,127,134,135,136,137,145,146,156,157,167,234,235,236,237,345,346,347,456,457,567,245,246,247,256,257,267,356,357,367,467}
so total 35 and each number is repeating 15 times
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are these questions really asked in tcs or are these own composition of the site??
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each individual child can go to cinema for 12 times before the repeatation ....
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6c2 timess...
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TCS Other Question

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