What will come in the place of
What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
यदि ‘+’ और ‘−’ को परस्पर बदल दिया जाए तथा ‘×’ और ‘÷’ को परस्पर बदल दिया जाए, तो निम्नलिखित समीकरण में प्रश्नवाचक चिन्ह (?) के स्थान पर क्या आएगा?
170 ÷ 2 − 150 ÷ 2 + 254 × 2 − 156 × 3 − 10 = ?
Detailed Solution & Logic
Correct Answer:
575
170 ÷ 2 − 150 ÷ 2 + 254 × 2 − 156 × 3 − 10 = ?
Step 1: Replace the symbols
-
+↔− -
×↔÷
तो नया equation बनता है:
$170 × 2 + 150 × 2 − 254 ÷ 2 + 156 ÷ 3 + 10$
Step 2: Solve each operation
-
170 × 2 = 340
-
150 × 2 = 300
-
254 ÷ 2 = 127
-
156 ÷ 3 = 52
अब equation:
340 + 300 − 127 + 52 + 10
Step 3: Solve step by step
-
340 + 300 = 640
-
640 − 127 = 513
-
513 + 52 = 565
-
565 + 10 = 575
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