Question

qustion on ratio....

if a team consist of 20 members in which 20 % are mathematician then how many member should they hire so that the ratio would be 10/11

Answer 1

so, before hiring, how many mathematicians are there out of 20 ?

Answer 2

4

Answer 3

goo, so old ratio = 4/20
new ratio = 10/11
what would you add to both numerator and denominator to change the ratio from old to new ?

Answer 4

like solve
\(\dfrac{4+x}{20+x}=\dfrac{10}{11}\)

Answer 5

@hartnn: ok thnks i got it now... :)

Answer 6

cool :)
welcome ^_^