Question 143Asked in Bihar STET 2025 Paper II Computer Science, 3 Nov 2025, Shift 1 (9:00 AM)

The number of Bricks each measuring 25 cm x 12.5 cm x 7.5 cm required to construct a6 मीटर लंबी, 5 मीटर ऊंची और 0.5 मीटर मोटी दीवार बनाने के लिए 25 सेमी x 12.5 सेमी x 7.5 सेमी

The number of Bricks each measuring 25 cm x 12.5 cm x 7.5 cm required to construct a wall 6 m Long, 5 m High, and 0.5 m Thick, While the Mortar occupies 5 Percent of the Volume of the Wall is?
6 मीटर लंबी, 5 मीटर ऊंची और 0.5 मीटर मोटी दीवार बनाने के लिए 25 सेमी x 12.5 सेमी x 7.5 सेमी मापने वाली प्रत्येक ईंटों की संख्या आवश्यक है, जबकि मोर्टार दीवार के आयतन का 5 प्रतिशत घेरता है?
  1. A88198819
  2. B60806080
  3. C90119011
  4. D20192019
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Correct answer: (B) 60806080

Explanation

Wall = 6 × 5 × 0.5 = 15 m³, and bricks fill 95% = 14.25 m³ = 14,250,000 cm³. One brick = 25 × 12.5 × 7.5 = 2343.75 cm³, so 14,250,000 ÷ 2343.75 = 6080 bricks.दीवार = 6 × 5 × 0.5 = 15 मी³, और ईंटें 95% = 14.25 मी³ = 14,250,000 सेमी³ भरती हैं। एक ईंट = 25 × 12.5 × 7.5 = 2343.75 सेमी³, इसलिए 14,250,000 ÷ 2343.75 = 6080 ईंटें।

From Bihar STET 2025 Paper II Computer Science PYQ, 3 Nov 2025, Shift 1 (9:00 AM)

This is question 143 of Bihar STET 2025 Paper II Computer Science PYQ, 3 Nov 2025, Shift 1 (9:00 AM). See all questions of this paper with answers, or attempt the paper as a timed online test to get your score and all-India rank.