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Suppose Sheetal?s birthday is on the?PPth of October and Karthik?s birthday is on the?QQth of November, where?PP?and?QQ?are perfect squares. If Sheetal was born 10 days before Karthik, then the value of?P ? 2QP?2Q?will be

Dear Student, 
your question is unclear and appears to be incomplete. Recheck your question and please be little specific about the ?sign (and what exactly is to be found out and also there is written PP and QQ, then only P and Q) to which you are referring here so that we can provide you with some meaningful help. 
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Given,

Sheetal's birthday?= Pth october

Karthik's birthday?= Qth november

Pth october - Qth november = 10 days


P and Q are perfect square.

solution----

Pth october - Qth november = 10 days----------(1)

Perfect square in October month after 20th October?= 25 october

Perfect square in November before 10th November = 4th november , 9th november

According to first equation the number of days should be equal to 10. So 4th November satisfy the given condition.

Calculate the value of?

P-2Q

Pth november - 2 Qth november

25 october - 2 * 4th november

= 14 days

Hence the value is 14 days.
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