and one more thing, give reasoning for your answers!!

say 'n' is an integer. then can n + 3 and n^2 + 3 both be perfect cubes?

use spoilers.

"empty here"

just kidding

5,4

very quick indeed! yeah correct, congrats HoustonHokie

3,3,5,4,4,3,5, ?, ?

plz use spoilers, all the best everyone

hey although it seems easy to me, keep on this job, u will get better

tooth ??

my answer is

1010 = 10 (dark_magician_92) not including _

lol! wow these were tne best 1 liners i have evrr heard in my life.

i didnt know surgeons can do this just to come on Brainden

#2

a+b+c = 8, sum of roots tsken 1 at a time

part (ii) = (a+b+c)^2 - 2*(ab+bc+ca)

= 64 - 2*(sum of roots taken 2 at a time = -5)

=74

for (iii) a^3+ b^3 +c^3 -3abc= (a+b+c)(a^2+b^2+c^2 - ab -bc - ca)

a^3+b^3+c^3 = 3(product of all roots = -7) + 8*(74+5)

= -21+632

=611

see next post

#3

if null set is included then 2^2010, it is

2011 C O + 2011C2+.......+2011C2010 = 2^2011 /2 =2^2010

its actually summation 1/n(n+1)

which is = to 1/n - 1/n+1, so we get on expanding from 1 to n

= 1-1/2+1/2-1/3+1/3-1/4 ........... 1/n - 1/n+1 = 1- 1/n+1 = n/n+1

lol

half nickel

#13

mark crimson

dunno if this is right

2*(7+(10/2))

[Same, yet different...]

mobile phone

i must get rid of posting answers as soon as i see the question, without dee thinking. once again am wrong

i think

under ideal stretching, it shud be 0.5 metres, and in real case it wud be slightly greater than 0.5 m if the thickness of rope is <<1 meters, dunno something feels me there is more to it .

idea is gr8 for sure! all the best!

I have decided to start another series. This time it is about codes:

A man was having a hard time remembering a password that was 7 characters and consisted of letters and numbers. He wrote down the phrase, "You force heaven to be empty." on a card to remember the password.

What was the password?

U472B80 , not sure bout 80

ok i got it, i m wrong

if we take rate=10%, then whats the point of minimum time??

anyways 6 years 351 days i guess

1. Never

2. When 1 = 13

3. when 11 = -1

just kidding

whats an ear of corn??

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