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The average height of Anil, Bimal and Chander is 150 cm. If the average height of Bimal and Chander is 90 cm, find the height of Anil.1. 275 cm2. 270 cm3. 260 cm4. 235 cm |
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Answer» Correct Answer - Option 2 : 270 cm Given: Average height of Anil, Binmal and Chander = 150 cm Average height of Bimal and Chander = 90 cm Formula used: Average = Sum of all observation/Number of observation Calculation: (Anil + Bimal + Chander)/3 = 150 ⇒ Anil + Bimal + Chander = 450 ----(1) (Bimal + Chander)/2 = 90 Bimal + Chander = 180. ----(2) From (1) and (2) Anil + 180 = 450 ⇒ Anil = 270 ∴ Anil’s height is 270 cm |
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