Question
Download Solution PDFSelect the correct combination of mathematical signs that can sequentially replace the boxes and balance the given equation.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFLet's check each option,
Given Equation:
1) ̶ , ̶ , ÷, =, ×, + →
⇒ 30 - 13 - 21 ÷ 3 = 2 × 4 + 2
⇒ 30 - 13 - 7 = 8 + 2
⇒ 30 - 20 = 10
⇒ 10 = 10
→ LHS = RHS → Satisfies the equation.
2) ̶ , +, ×, =, ÷, + →
⇒ 30 - 13 + 21 × 3 = 2 ÷ 4 + 2
⇒ 30 - 13 + 63 = 0.5 + 2
⇒ 93 - 13 = 2.5
⇒ 80 ≠ 2.5
→ LHS ≠ RHS
3) ̶ , +, ÷, ×, =, + →
⇒ 30 - 13 + 21 ÷ 3 × 2 = 4 + 2
⇒ 30 - 13 + 7 × 2 = 6
⇒ 30 - 13 + 14 = 6
⇒ 44 - 13 = 6
⇒ 31 ≠ 6
→ LHS ≠ RHS
4) +, ̶ , ÷, ×, =, + →
⇒ 30 + 13 - 21 ÷ 3 × 2 = 4 + 2
⇒ 30 + 13 - 7 × 2 = 6
⇒ 30 + 13 - 14 = 6
⇒ 43 - 14 = 6
⇒ 29 ≠ 6
→ LHS ≠ RHS
Here, we can see that only Option 1 satisfies the equation.
Hence, the correct answer is "̶ , ̶ , ÷, =, ×, +".
Last updated on Jun 16, 2025
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