IBM Company Numerical Ability Alligation or Mixture

Brittany needs a mixture of 76% oats and 24% corn. She currently has 25 pounds of a mixture that is 28% oats. How many pounds of oats should be added to the mixture?

Read Solution (Total 5)

x+7/25+x=76/100=50
10 years agoHelpfull: Yes(11) No(0)

Ans: 12 pounds of oats
Exp:
We have only 25*28%=7kg
we need 76%
so, x+7=25*76/100
x+7=19
x=19-7
x=12
11 years agoHelpfull: Yes(7) No(9)
Ans is 50 pounds
12 years agoHelpfull: Yes(6) No(5)
answer-50
25*28%=7
let x pounds is to be mixed
7+x/25+x=74/100
x=50
11 years agoHelpfull: Yes(3) No(0)
http://mathforum.org/library/drmath/view/66641.html
8 years agoHelpfull: Yes(1) No(0)

IBM Other Question

The sides of a triangle are 24, 16, and 12. The shortest side of a similar triangle is 6. Find the longest side of this triangle. Four skilled workers do a job in 5 days, and five semi-skilled workers do the same job in 6 days. How many days will it take for two skilled and one semi-skilled worker to do that job?