If + means −, − means ×, × means ÷, ÷ means +, then what will come in place of the question mark (?) in the following equation?
If + means −, − means ×, × means ÷, ÷ means +, then what will come in place of the question mark (?) in the following equation?
यदि + का अर्थ − है, − का अर्थ × है, × का अर्थ ÷ है, ÷ का अर्थ + है, तो निम्नलिखित समीकरण में प्रश्न-चिह्न (?) के स्थान पर क्या आएगा?
18 − 2 + 48 × 4 ÷ 21 = ?
Detailed Solution & Logic
Correct Answer:
45
Given the operator meanings:
-
- means −
- − means ×
- × means ÷
- ÷ means +
So the expression becomes:
18 − 2 + 48 × 4 ÷ 21
→ 18 × 2 − 48 ÷ 4 + 21
Now solve using BODMAS:
- 18 × 2 = 36
- 48 ÷ 4 = 12
So expression becomes:
36 − 12 + 21 = 24 + 21 = 45
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