Question

Which number should come in place of both mark(?)/81 = 144/(?) explain in steps
A. 108
B. 972
C. 1296
D. 11664​

Answer 1

Answer:

hey mate here's the ans

let (?) be X

now according to question

X/81=144/X

then we will do cross multiplication which give

x×x= 144×81

x^2=144×81

X=√11664

X=108 is the ans

hope it helps u:)

Answer 2

Answer:

The correct answer is A) 108

Step-by-step explanation:

From the above question,

They have given :

We can solve for the missing value by cross-multiplying and then simplifying the expression. Here are the steps:

Start with the equation:

                    ?/81 = 144/?

Cross-multiply to eliminate the division:

                    ? * 144 = 81 * ?

Simplify both sides of the equation:

                    ? * 144 = 81 * ?

                    ? * 144 = 81 * ?

Divide both sides of the equation by ?:

                    144 = 81

Solve for ? by dividing both sides by 81:

                    ? = 144/81

                    ? = 144/81

Simplify the fraction:

                    ? = 144/81 = 12/7

So, the number that should come in place of both marks is 12/7.

Among the given options, only D) 11664 is close to 12/7. But since it is not an exact fraction, it is not the correct answer. The correct answer is not given in the options.

Divide both sides of the equation by 81 to get the intended equation of 1 = 144/x

          Multiply both sides of the equation by x to get x = 144

Divide both sides of the equation by 144 to get the final answer of x = 1

Therefore, the number that should come in place of the mark (?) is 108.

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