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Someone please clarify the concept of Derangement in P n C.

Write nernst equation for a Daniel cell

which color has the longest wavelength ?

The sum of three numbers in a geometric progression is 13 and the sum of their squares is 91.Find the smallest number.

I talk to Vijay from Hyderabad

How to solve Permutations and Combinations questions hassle free?

how much should i score in mock exams to crack IBPS exams of 2017??

about around 3 months left for ibps po 2017 pre exam!! by now how much should I score in my mocks?

How to solve Quadratic equations?

the rate of interestfor the first 2 yrs is 3%per annum ,for next 3 yrs is 8% per annum and for the period beyond 5 yrs is 10% per annum if a man gets rs 1520 as a simple interest for 6 yrs ,how much mny did he deposit?