Probability Exercise: The milk and water in two vessels A and B are | HelloExamz

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Q

The milk and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3 respectively. In what ratio, the liquids in both the vessels are...

The milk and water in two vessels A and B are in the ratio 4 : 3 and 2 : 3 respectively. In what ratio, the liquids in both the vessels are mixed to obtain a new mixture in vessel C containing half milk and half water ? (All the vessels are of same size and all are filled fully)

A

None of these

B

24%

C

21%

D

35%

E

18%

A

None of these

B

24%

C

21%

D

35%

E

18%

Solution

Let, the total number of students be = NThe, number of girls = 60% of N 0.6NNumber of poor girls = 35% of 0.6N =...

Let, the total number of students be = N
The, number of girls = 60% of N 0.6N
Number of poor girls = 35% of 0.6N = 0.21N
The probability of selecting a poor girl student = (0.21N)/N = 0.21 = 21%

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