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7 9 17 8 10 21
30 50 ?
4 5 6 3 3 6

7 9 17 8 10 21
30 50 ?
4 5 6 3 3 6

the youngster has proven his ability as an aggressive sportsperson and age being on his sides, he has a huge chance of succeeding  in the near future 

please tell the error in the sentence

The most powerful advantage of internet is thatit decentralizes works centres and makes widespread empowerment

if a clock strikes once at 12 A.M. , twice at 1 A.M. , thrice at 2 A.M. and so on.How many times will the clock be struck in the course of 3 days? 1. 756. 2. 828. 3. 678. 4.1288

What are the chances of me getting into a B-School immediately after graduation (I mean no work experience)?(I am academically doing good)

if a+b=9 then which of the following options can not be the unit digit of a^243+b^243-(ab)^243?    options 1,3,7,9?

After striking a floor a rubber ball rebounds 5/6 the of the height from which it has fallen.find the total distance that it travels before coming to rest if it is gently dropped from a height of 210 metres.Explain the movement of the rubber ball in detail.

The internal angles of a plane polygon are in arithmetic progression.The smallest angle is 100° and the common difference is 10° .find the number of sides of the polygon.

if 8th term of an arithmetic progression is the geometric mean of the 1st and 22nd terms of the same A.P. find the common difference of the A.P. given that the sum of the first 22 terms of the A.P. is 770.