NIMCET 2020 Question Paper with solutions

Question : 63 of 120

Marks: +1, -0

Four students A, B, C and D distributed 30 marbles among themselves. No two students got equal number of marbles. No student got more than 10 marbles. No student got less than 5 marbles. A and C got odd number of marbles. B and D got even number of marbles. A got more marbles than B, C got more marbles than D,B got more marbles than D.
Mean of number of marbles with B, C, D is:

6
7
8
None of the above

Validate

Solution:

By assuming values of A,B,C & D, we get unique values
A = 9
B = 8
C = 7
D = 6
Which satisfy given condition
Average of B,C & D

={8+7+6}/3=21/3=7

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