Question
Download Solution PDFWhich two signs should be interchanged to make the given equation correct?
(50 ÷ 3) × 15 + 25 − 10 = 25
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe pattern followed here is:
In this question, two signs should be interchanged to make the given equation correct.
Given: (50 ÷ 3) × 15 + 25 − 10 = 25
Option 1) ÷ and -
After interchanging the two signs we get the;
⇒ (50 - 3) × 15 + 25 ÷ 10 = 25
⇒ 47 × 15 + 25 ÷ 10 = 25
⇒ 47 × 15 + 2.5 = 25
⇒ 705 + 2.5 = 25
⇒ 707.5 ≠ 25
⇒ LHS ≠ RHS
Option 2) + and ×
After interchanging the two signs we get the;
⇒ (50 ÷ 3) + 15 × 25 − 10 = 25
⇒ 16.66 + 15 × 25 - 10 = 25
⇒ 16.66 + 375 - 10 = 25
⇒ 391.66 - 10 = 25
⇒ 381.66 ≠ 25
⇒ LHS ≠ RHS
Option 3) ÷ and ×
After interchanging the two signs we get the;
⇒ (50 × 3) ÷ 15 + 25 − 10 = 25
⇒ 150 ÷ 15 + 25 - 10 = 25
⇒ 10 + 25 - 10 = 25
⇒ 35 - 10 = 25
⇒ 25 = 25
⇒ LHS = RHS
Option 4) + and −
After interchanging the two signs we get the;
⇒ (50 ÷ 3) × 15 - 25 + 10 = 25
⇒ 16.66 * 15 - 25 + 10 = 25
⇒ 249.9 - 25 + 10 = 25
⇒ 259.9 - 25 = 25
⇒ 234.9 ≠ 25
⇒ LHS ≠ RHS
Hence, the correct answer is "Option 3".
Last updated on Jul 19, 2025
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