what ?

1+1?

total of 22 person in office.. 30% is mathematician.. need to hire how many ppl more to get 8/10 of MAthematician

hahaha answer..tis question bothering me

maths and i aren't friends.

same here... someone please help..

im not smarter than 5th grader..

ok lets try to solve this... 11 pple will make 50% out of 22 pple...

so assume 6 pple is 30%... so nid another 2 pple!

8/10???

max 10 mathematicians

already 30% are mathematicians, so must find out 30% is how many and how many more to hire to make 10

hhmm..

nono..total now is 22..and = 30% of current mathematician.. need to hire how many new ppl to get 8/10 of mathematician

hahahaha

hire another 28 people

eh.. 22+11 .. hire another 33 lah

22 = 30 %, 44 = 60%, 55 = 75% close enuf lah

simple, use ((0.3x22)+X)/(22+X)=0.8 where big X is unknown.

you get X=55, so you hire 55 more people. (0.3 x 22 + 55)/(22+55) = 0.8

not total 55 ?

gosh.... hahaha!!

yah wat, 30% of 22 is 6.6 ppl. you hire 55 more so 61.6 divided by 55+22 is 80%

my maths phail, lol

hahhaa me too...

maths genius that make sense:

70% = 15 ppl.., hence, to makeit to become 20% =15

80%= ?

80/20 x 15 = 60

60- 7 = 53

need to hire another 53

lol

faint