Four numbers in the ratio of 1:3:4:7 add up to give a sum of 75. Find the value of the biggest number.a)42b)35c)49d)63Correct answer is option 'B'. Can you explain this answer?

Question

Answer

Given ratio of four numbers = 1:3:4:7
Let the common factor be x
Then the four numbers can be written as x, 3x, 4x, and 7x

According to the problem, the sum of these four numbers is 75
So, we can write the equation as:
x + 3x + 4x + 7x = 75
Simplifying the equation, we get:
15x = 75
x = 5

Therefore, the four numbers are:
x = 5
3x = 15
4x = 20
7x = 35

The biggest number is 35, which is option B.

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