Question:
If ‘+’ means ‘multiplication’, ‘-‘ means ‘division’, ‘\(\times\)’ means ‘subtraction’ and ‘\(\div\)’ means ‘addition’, then what is the value of:
\((45 – 9) \times 8 + 3 \div (18 – 3) + 2\)?
\((45 – 9) \times 8 + 3 \div (18 – 3) + 2\)?
यदि ‘+’ का अर्थ ‘गुणा’, ‘-‘ का अर्थ ‘भाग’, ‘\(\times\)’ का अर्थ ‘घटाव’ और ‘\(\div\)’ का अर्थ ‘जोड़’ है, तो निम्नलिखित व्यंजक का मान क्या होगा:
\((45 – 9) \times 8 + 3 \div (18 – 3) + 2\)?
\((45 – 9) \times 8 + 3 \div (18 – 3) + 2\)?
Options:
- -7
- 5
- 12
- -19
- -7
- 5
- 12
- -19
Correct Answer: a)
Explanation:
Substitute the real operations according to the rules:
– \(45 – 9 \rightarrow 45 \div 9 = 5\)
– \(\times \rightarrow -\)
– \(8 + 3 \rightarrow 8 \times 3 = 24\)
– \(\div \rightarrow +\)
– \(18 – 3 \rightarrow 18 \div 3 = 6\)
– \(+ 2 \rightarrow \times 2\)
Expression becomes:
\(5 – (8 \times 3) + (6 \times 2) = 5 – 24 + 12 = 17 – 24 = -7\).
– \(45 – 9 \rightarrow 45 \div 9 = 5\)
– \(\times \rightarrow -\)
– \(8 + 3 \rightarrow 8 \times 3 = 24\)
– \(\div \rightarrow +\)
– \(18 – 3 \rightarrow 18 \div 3 = 6\)
– \(+ 2 \rightarrow \times 2\)
Expression becomes:
\(5 – (8 \times 3) + (6 \times 2) = 5 – 24 + 12 = 17 – 24 = -7\).
दिए गए संकेतों को वास्तविक गणितीय चिन्हों में बदलें:
\((45 \div 9) – (8 \times 3) + (18 \div 3) \times 2\)
= \(5 – 24 + 6 \times 2\)
= \(5 – 24 + 12 = 17 – 24 = -7\)।
\((45 \div 9) – (8 \times 3) + (18 \div 3) \times 2\)
= \(5 – 24 + 6 \times 2\)
= \(5 – 24 + 12 = 17 – 24 = -7\)।