Maymensingh divisional 2014 Q.no.- 4

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Mahfuz Sobhan
Posts: 25
Joined: Sat Feb 07, 2015 5:40 pm

Maymensingh divisional 2014 Q.no.- 4

Unread post by Mahfuz Sobhan » Sat Dec 12, 2015 7:27 pm

In the given diagram a square is marked with circle. Which number will be inside the square 100th position upper than this one?
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Mahfuz Sobhan
Posts: 25
Joined: Sat Feb 07, 2015 5:40 pm

Re: Maymensingh divisional 2014 Q.no.- 4

Unread post by Mahfuz Sobhan » Sat Dec 12, 2015 7:31 pm

first term, a = 7
common difference, d = 8
number of term, n = 100
a + (n - 1)*d = 7 + (100 - 1)*8 = 7 + 99*8 = 7 + 792 = 799
in 800th position, 5 is situated
therefore in 799th position 4 is situated.
ans is 4

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