Question

BRAINTEASER MATH 1. Multiple me by 20 and the awnser is 10 what am i________ 2.I am a prime number over 70 and less then 80 what am i ________3. i am the largest 3 digit number that can be rounded up too 1000 what am i ________

Answer 1

1) 0.5 , 2)71 or 73 or 79  , 3) well i would say 999