There are 7 people he wishes to invite. Every friend has 2 choices either accept or decline the invitation. So, total ways = 2*2*2*2*2*2*2 =27 Now, we know 1 or more may accept the invitation(given). So, no person is coming to part = 1 way. So, required ways = 27 – 1 = 128 – 1 = 127
How is M related to N?
Who is mother of S?
Who is the grandmother of S?
How is E related to U?
A and Z are siblings. B has two children and he is son of Y, who is father-in-law of C. C has only one son. Z is not granddaughter of Y. How is A relate...
Which of the following is definitely false?
How is T related to Z?
Who among the following is the mother of M?
How is J related to G?
If Radhika is the wife of Geet and Jayesh is married to Kaveri then how is Radhika related to Kaveri?