प्लॅटफॉर्मच्या माथ्यावरून, टॉवरच्या उंचीचा कोन 45° होता. टॉवर 47 मीटर उंच होता आणि प्लॅटफॉर्म आणि टॉवरमधील आडवे अंतर 40 मीटर होते. प्लॅटफॉर्मची उंची किती होती?

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RRB ALP Previous Paper 9 (Held On: 14 Aug 2018 Shift 2)
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  1. 10 मीटर 
  2. 5 मीटर 
  3. 7 मीटर 
  4. 7√3 मीटर 

Answer (Detailed Solution Below)

Option 3 : 7 मीटर 
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Detailed Solution

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प्लॅटफॉर्मची उंची x मीटर मानू.

⇒ tan45° = लंब/पाया = (47 – x) / 40

⇒ 1 = (47 – x) / 40

⇒ 40 = 47 – x

⇒ x = 7

∴ प्लॅटफॉर्मची उंची = 7 मीटर 

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