$ 15 – 7 \div 4 + 36 \times 9 = ? $
What will come in place of the question mark (?) in the following equation if ‘+’ and ‘−‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
यदि निम्नलिखित समीकरण में ‘+’ और ‘−’ के चिह्न आपस में बदल दिए जाएँ तथा ‘×’ और ‘÷’ के चिह्न भी आपस में बदल दिए जाएँ, तो प्रश्नवाचक चिन्ह (?) के स्थान पर क्या आएगा?
$ 15 – 7 \div 4 + 36 \times 9 = ? $
Detailed Solution & Logic
Correct Answer:
39
Apply the given interchanges:
- + and − are interchanged.
- × and ÷ are interchanged.
The equation becomes:
$15 + 7 \times 4 - 36 \div 9$
Now apply BODMAS:
=15+28-4
=43-4
Answer =39
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