MBA Exam

∆ABC inscribed in a circle C, has its sides in the ratio 1 : 2 : √5. Find the ratio of the radius of the incircle of ∆ABC to that of its circumcircle?

1) 1/5(3√5 - 5)
2) √5 + 1/2
3) 2√5 - 3/5
4) Can’t be determined

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MBA Other Question
Find the 10s digit of 1! + 2! + 3!.....30! Please share the approach as well ....

1) 1
2) 2
3) 5
4) None of these
 Which of the following is/are not prime?1. (2^5001)+12.(2^5002)+13.(2^5003)+1

1) 1&2
2) 2&3
3) 1,2,3
4) 1&3