A) 7
B) 5
C)8
D)6
2007-10-08 19:56:54 · 8 answers · asked by thecookfamily00 1 in Science & Mathematics ➔ Mathematics
Thank you everyone I really feel stupid about how easy this was...
2007-10-08 20:13:03 · update #1
6
21/3-3/3
division first
7-1 = 6
2007-10-08 19:59:37 · answer #1 · answered by Jay 4 · 0⤊ 0⤋
21 / 3 - 3 /3 = 7 - 1 = 6
2007-10-08 20:00:27 · answer #2 · answered by silver 3 · 0⤊ 0⤋
6
2007-10-08 20:21:25 · answer #3 · answered by jhandu_da 2 · 0⤊ 0⤋
21/3 - 3/3
= 7 -1 = 6
Answer = D
2007-10-08 20:00:59 · answer #4 · answered by JJ 3 · 0⤊ 0⤋
first u have to solve the division and then minus. accordingly 21/3 and 3/3 are to be solved first. then the question remains 7 minus 1. which is D/6
answer- D 6
2007-10-08 20:08:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋
21 / 3 - 3 / 3 = 7 - 1 = 6
ANSWER D)
2007-10-08 22:05:14 · answer #6 · answered by Como 7 · 0⤊ 0⤋
it actually depends on how u bracetize things....its called priority based on the BODMAS rule....
BODMAS(bracket,orders,division,multiplication,
addition,subtraction)
1.
(((21/3)-3)/3)
=((7-3)/3)
=(4/3)
=1.3333.....
2.
(((21/(3-3))/3)
=((21/0)/3)
=anything divided by "0" is an error in mathematics, equalised to infinity
so
=infinity
3.
((21/3)-(3/3))
=(7-1)
=6
4.
(((21/((3-3)/3))
=(21/(0/3))
=(21/0)
=again infinity...
hope i have covered all or most of the options...if not...write them out...ill try to solve them.. :)
2007-10-08 20:29:53 · answer #7 · answered by hindia4u 1 · 0⤊ 0⤋
(21/3) - (3/3)
7 - 1
= 6
Remember your BODMAS!
2007-10-08 19:59:55 · answer #8 · answered by Skaggy says: 5 · 1⤊ 0⤋