Mymensingh higher secondary 2018 P7

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samiul_samin
Posts:1007
Joined:Sat Dec 09, 2017 1:32 pm
Mymensingh higher secondary 2018 P7

Unread post by samiul_samin » Sun Feb 17, 2019 9:25 am

In the planet 'hoyto' every question has three answers.Yes,No or May be.In the planet 'Shokto' every question has two answers. Yes or No. If you ask $2018$ questions, what is the difference between number of all possible way of answering?

samiul_samin
Posts:1007
Joined:Sat Dec 09, 2017 1:32 pm

Re: Mymensingh higher secondary 2018 P7

Unread post by samiul_samin » Sun Feb 17, 2019 9:57 am

All possible of answering by the people of 'hoyto' planet=$3^{2018}$
All possible of answering by the people of 'Shokto' planet=$2^{2018}$
Answer: $3^{2018}-2^{2018}$

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