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Q.

Three numbers are in the ratio 4:5:6 and their average is 25. Then the largest number is:?

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a

30

b

32

c

36

d

42

answer is A.

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Detailed Solution

Concept- To solve this problem, assume a variable multiplied by the ratio of three numbers, formulate an equation, and solve it according to the question.
The associated number is 4: 5: 6.
And since the ratio of these three numbers is also 4: 5: 6, it can be said that the three numbers can be 4a, 5a, 6a.
You now have three numbers, 4a, 5a, and 6a.
The average of the three numbers is assumed to be 25. So we can:
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In the above numbers the highest numbers is 30
Hence, the correct answer is option 1) .

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