Rithvik's Blog 11+

 Which series is this callous speech from? Sons of Gondor! Of Rohan! My brothers. I see in your eyes the same fear that would take the heart of me. A day may come when the courage of Men fails, when we forsake our friends and break all bonds of fellowship, but it is not this day. An hour of wolves and shattered shields when the Age of Men comes crashing down, but it is not this day! This day we fight! By all that you hold dear on this good earth, I bid you stand, Men of the West!

You need to arrange your 3 friends and you (Tom, Peter, Bob and George) in the bistro queue, in a single-file line. However, Tom and Bob are best friends, so you have to put them next to each other, or they won't even come into the queue. How many ways can you arrange yourselves?

 1)   What is the value of: 1 + 3 + 5 + 7 + 9 +...........+ 35 + 37 + 39