DevSquare Quantitative Aptitude Data Interpretation Questions

Among the options, F12 is not possible since it is clearly mentioned it is not a United member.
Look at the members of Team 6 and Team 7 carefully.
In Team 7, F2 and F9 are from Liverpool. Since there can be no more Liverpool members in the team, F12 is a Chelsea member. Now, remains F14 and F15. So, F15 can be either a Chelsea or a United.
Now, look at Team 6. Here, we know F7 is from Chelsea. And we have established that F12 is also from Chelsea. Now, since a team can have only 2 Chelsea members, F15 is not Chelsea. And from above, we know F15 can be either Chelsea/United.
Hence, we conclude that F15 is United.
Answer will be 4

Given 2G + 3B = 20.

Now if we use statement (A) that number of girls is not more than 5, then we have
G = 1, B = 6 OR G = 4, B = 4.
Since we cannot get a single solution from this statement
it is not sufficient to answer the question.

If we use statement (B) 3B + 2G = 20 we have G = 4 and B = 4.
Hence, statement (B) alone is sufficient to answer the question.

Before answering this question, mark all the other members using similar logic. There is no need of assuming anything. As you go on marking the members in each team, you will find they will definitely belong to one of the 3 teams given.
After marking all of them, you will find 5 players belonging to Chelsea: F7,F10,F11,F12,F14

Hence, answer will be option 2

Now since you know all the members, its easy to mark the answers.
In Team 8, F4 and F8 are from Liverpool.
Hence, answer is a

Total fees per match for any team will be the same since every team has the same combination of members.
Total=2x800[2 Liverpool] + 2x775[2 Chelsea] + 1x725[1 United]=1600+1550+725=3875

The answer to this will be F3 and F16 i.e. b

Base is common for both of the triangles
area(abd)/area(bdc)=10/20
=>(1/2)*bd*h1)/(1/2*bd*h2)=1/2
=>h1/h2=1/2
h1 and h2 are parallel (as they are perpendicular 2 same line)
from this we can say that,
respective angles are same for both the triangle.
so ,
ad/dc=1/2 (ans)

 

statement 1 is sufficient.
15 litre of milk(water + milk) = CP of 15 litre of milk
CP of 1 litre=x
80% of 15 litre =12 litre of milk.
12 litre of milk sold at 15x
(15x-12x)*100/12x
25%.

Data Inadequate. As No relation is given among Randhir and Nitin.

20 60
32
28 12
so the mixture will be in 28:12 ratio => 7:3 ratio
(1) if we have 70 liters of 32% alcohol that means we have
70*(7/(7+3)) liter = 49 liter of 20% alcohol
(2) if we have 21 liter of 60% alcohol that means 3x = 21(from the ratio)
=> x = 7
so we have 7 * 7(from ratio) liter of 20% of alcohol

so both statement alone is sufficient