Question Details

In an examination, Rama's score was one-twelfth of the sum of the scores of Mohan and Anjali. After a review, the score of each of them increased by 6. The revised scores of Anjali, Mohan, and Rama were in the ratio 11:10:3. Then Anjali's score exceeded Rama's score by

Options

A

24

B

26

C

32

D

35

Show Answer

Correct Answer :

Option C

32

Solution :

Let the initial scores of Rama, Mohan, and Anjali be R, M, and A respectively.

According to the first condition:
R=112(M+A)
12R=M+A — (Equation 1)

After the review, each score increases by 6. The new scores are R+6, M+6, and A+6 respectively. The ratio of their revised scores is:
(A+6):(M+6):(R+6)=11:10:3

Let the revised scores be:
A+6=11kA=11k6
M+6=10kM=10k6
R+6=3kR=3k6

Substitute these values into Equation 1:
12(3k6)=(10k6)+(11k6)
36k72=21k12
15k=60
k=4

We can now find the initial scores:
A=11(4)6=38
R=3(4)6=6

The difference between Anjali's score and Rama's score is:
AR=386=32

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