There are 5 older sisters and 5 younger sisters (i.e. each older sister has one younger sister and each younger sister has one older sister ) Each of the five older sisters – Ariha, Bethel, Chloe, Disha and Evin, whose ages are distinct, has a younger sister among Paula, Karla, Rita, Shipra and Tara, not necessarily in the same order. We know the following information about them.
A) For every pair of older sister and younger sister, the difference between the age of the older sister and her younger sister is the same.
B) Evin is not the older sister of Rita. Ariha is elder than Chloe.
C) Tara is the younger sister of neither Disha nor Bethel but younger than Shipra, whose older sister is older than Bethel.
D) Tara has as many younger sisters younger than her as older than her.
E) Ariha and Evin are the eldest and the youngest among the five older sisters.
F) Bethel's younger sister is not younger than Rita but elder than Paula.
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Guys , Please mention the approach other than wilson's theorem. If this can be done only with wilson's theorem then please elaborate properly. I am not able to apply it. Thank You
Sum of five consecutive terms of an increasing geometric progression is 211. It is known that all the five terms are positive integers. Find the number of perfect squares among these five terms.People who post their answers kindly explain along with the ans ur approach
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If |(a − b + c)(b − c + a)(c − a + b)| = 15 ,where |x| has its usual meaning , then the possible number of ordered integral triplets (a,b,c) are (a)36 ( b)33 (c)66 (d)60 (e) None of the foregoing
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