Question

how many 3-digit positive odd numbers are there that do no have the digit 5?

Answer 1

9*9*9
----- maybe?
2

Answer 2

thats not an integer

Answer 3

450 -(100+90 +90)

Answer 4

170

Answer 5

the gre practice exam said it was 288

Answer 6

sorry

Answer 7

:( i hate these problems

Answer 8

out of 1000 numbers; we have 500 odd numbers right?

Answer 9

-100 for the single and double digits = 400

Answer 10

and did how many odd numbers would there be without digit 5

Answer 11

-50, not 100 lol

Answer 12

the total 3 digit odd nos is 450

Answer 13

now we just subtrct the nos with 5 in them

Answer 14

omg i got it!

Answer 15

8*9*4

Answer 16

271 numbers out of 1000 have a 5 in them

Answer 17

oh yes

Answer 18

IM SUCH A FOOL

Answer 19

AND M THINKING OF GIVING GRE

Answer 20

the ones digit has to be odd but cannot be 5
so there are 4 numbers the ones digit can be
the tens digit can be any number between 0 and 9 except 5
so there are 9 numbers the tens digit can be
and the hundreds digit can 8 numbers since we have to have a digit number and it cannot be 5 also

Answer 21

yeah i got it

Answer 22

3 digit number*

Answer 23

\(\color{red}{\text{Good Job myin!! :)}}\)

Answer 24

so hundreds digit cannot be 0

Answer 25

thank you so much for helping
i figured i will aced the math part since i suck at english

Answer 26

how many marks is maths?

Answer 27

i think i heard it was 700 or 800

Answer 28

only 2 subjects?

Answer 29

math, english, and writing an essay

Answer 30

english=reading passages
analogies
i think thats it

Answer 31

ohk

Answer 32

how long do u guys prepare for it?

Answer 33

im taking it tuesday
i havent done much studying

Answer 34

i think i only have to do average on it i hope

Answer 35

so him you said u have to take it/

Answer 36

four years hence

Answer 37

8 ways to pick the hundreds digit
9 ways to pick the tens digit
4 ways to pick the units digit. Must be odd and not 5
8*9*4 = 288

I hope it's correct.

Answer 38

amistre when will you be done with your bachelors?

Answer 39

yes gj rob lol i already got it those thanks

Answer 40

how long do i need 2 prepare myininaya?

Answer 41

i will let you know after i get my score on tuesday k?

Answer 42

hahaha

Answer 43

brush up on your geometry and stat and probability
the rest of math is like totally freaking easy

Answer 44

bt i hav 4 yrs to go

Answer 45

lol i dont think you need 4 years to study lol

Answer 46

bt m 18 .. cn i give it as undergrad?

Answer 47

i dont see why not ask your college advisor
do you know what you are interested in?
do you know what you want to get ur phd in?

Answer 48

i will join college in a month
im interested in theoretical and particle physics
id like a phd in either quantum physics or cosmology

Answer 49

you should ask the department chair of the science/physics if you can do it early
some want you to just take the general gre and some want you to take the subject gre
and some might want both

Answer 50

ohk...

Answer 51

im just starting college...i dunno nethin abt it

Answer 52

im going to go back and study now :)

Answer 53

good luck and thanks