I Think that something is missind in the question if the ans is A for the question given by hotsummertime.
As u can reduce the equztion till
Col A Col B
t 3s
If we know relation between all the four integers then the ans can come.
Without that the ans will be D
Let us do it logically
Suppose we have x flowers
So we have x+4 bees
Now the question says if we have "if there are 4flowers less " so acc. to it
x-4(As the x is number of flowers)
Then " number of bees will be twice the no.of flowers"
x+4=2(x-4)
So x=12
The question is little confusing hope this explanation makes it clear sruthi07.
yes I agree with rezbipul as the number of ways a student can answer the multiple choice is 4(including one where he does not give ans) and for true/false 3(same reason)
So 4^5*3^5
Now subtract one from this as the question ask where the student is giving one or more than one answer so we exlude the part where he does not give answer at all out of 10 questions.
So 4^5*3^5-1 is the answer
Let cost of pen be :x
" " " pensil be:y
" " " erasure be:z
So we get three equations:
6x+5y+z=17.5
3x+3y+2z=10
5x+2y+5z=14.5
So now we have three unknowns and three equations we can solve for two then for one.
I got the answer as
1 pen: $2
1 pensil: $1
1 eraser: $0.5
So for the asked the answer will be $10.5
What is OA?
Thanks leonardoaugust83 vbmenu_register("postmenu_407201", true);
ya the same funda.I think leonardoaugust83 vbmenu_register("postmenu_407201", true); has done the explanation better than anyone. :)