Question 38 (iii) (Choice B) - CBSE Class 10 Sample Paper for 2026 Boards - Maths Basic - Solutions of Sample Papers for Class 10 Boards

Last updated at Sept. 10, 2025 by Teachoo

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Question 38 (iii) (Choice B) People with blood type AB positive (AB+) are known as the universal recipient and with blood type O negative (O−) are known as universal donor. Find the probability of a selected person to be neither universal recipient nor universal donor. P(person is neither universal recipient nor universal donor) = 1 – P(person is universal recipient or universal donor) =1−(𝑃𝑒𝑜𝑝𝑙𝑒 𝑤ℎ𝑜 𝑎𝑟𝑒 𝑈𝑛𝑖𝑣𝑒𝑟𝑠𝑎𝑙 𝑟𝑒𝑐𝑒𝑖𝑝𝑖𝑒𝑛𝑡 𝑜𝑟 𝑑𝑜𝑛𝑜𝑟)/(𝑇𝑜𝑡𝑎𝑙 𝑝𝑒𝑜𝑝𝑙𝑒) =𝟏−(𝑷𝒆𝒐𝒑𝒍𝒆 𝒘𝒊𝒕𝒉 〖𝑨𝑩〗^+ + 𝑷𝒆𝒐𝒑𝒍𝒆 𝒘𝒊𝒕𝒉 𝑶^−)/𝟏𝟎𝟎 =1−(3 + 10)/100 =𝟏−𝟏𝟑/𝟏𝟎𝟎 =(100 − 13)/100 =𝟖𝟕/𝟏𝟎𝟎

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 15 years. He provides courses for Maths, Science and Computer Science at Teachoo

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