Correct Answer - Option 1 :
13133
Concept: Students should remember that square and square roots are one of the most important aspects that they need to learn in order to crack the exam.
Solution:
√8836 = 94
√5041 = 71
√4489 = 67
So the equation becomes,
94 × 80 + 71 × 80 - 67
= 80 × (94 + 71) - 67
= 80 × 165 - 67
= 13200 - 67
= 13133