gre Interview Numerical Ability Alligation or Mixture

10 liter of water were added to 10 liter of a 30% strong sol of sulphuric acid, then strenthg of resulting sol is?

Read Solution (Total 2)

Now total solution = 20L
sulphuric acid = same i.e. (30/100)*10 = 3L
new percentage = (3/20)*100= 15%
10 years agoHelpfull: Yes(4) No(0)

15
ading water ,vol of water=17l&vol of acid remain 3l
so strenght of sol (3/20)*100
10 years agoHelpfull: Yes(3) No(0)

gre Other Question

Six years ago, the ratio of the ages of Vimal and Saroj was 6 : 5. Four years hence, the ratio of their ages will be 11 : 10. What is Saroj's age at present?

A. 18

B. 17

C. 16

D. 15 a small factory with 3 machines has a job of stamping out a number of pan covers, the newest machine can do it in 3 days, and the other machine can do it in 4days and the 3rd machine can do it in 6 days how many days will the factory take to do the job using the three machines