Multiple choice

What approximate value will come in the place of question (?) marks: 219.89 % of 44.92 + (?)3 + √80.98 = (18.11)2

  1. 12

  2. 6

  3. 11

  4. 9

  5. 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

220% of 45 = 99. sqrt(81) = 9. 18^2 = 324. Equation: 99 + x^3 + 9 = 324 => 108 + x^3 = 324 => x^3 = 216 => x = 6.

AI explanation

Approximating the values gives the equation 220% of 45 plus x cubed plus the square root of 81 equals 18 squared. Calculating the terms yields 99 + x cubed + 9 = 324, which simplifies to x cubed + 108 = 324. Solving for x cubed gives 216, so x equals 6.

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