If 35% of a number is 12 less than 50% of that number, then the number is;

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answer is D.

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Detailed Solution

Concept: Assume that variable x is the necessary number initially. Finding the value of variable x is our goal. Find the value of 35 percent of x in terms of x before applying the condition. Next, calculate 50% of x in terms of x. Now connect them using the criteria provided. Now that x is present on both sides of the equation, you have a relation. Utilizing this relationship, determine the variable's coefficient on both sides of the equation. Right-hand side term with variable PM coefficient subtracted. Find the constant values on both sides of the equation in a similar manner now. On both sides of the equation, deduct the constant value on the left-hand side
Let x be the required number,
a% of b =

So, 35% of x =

50% of x =

By given condition,

Hence, option 4 is the correct answer.

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