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Five students' marks (out of 100) are shown on a bar graph, and their average mark is 64.
The bars for four of them read 58, 70, 66, 52.
What is the fifth student's mark?

Class 7Bar GraphsData Handling
  • A81
  • B67
  • C74
  • D148

Step-by-Step Solution

Total of 5 = average . Known four = 58+70+66+52 = 246. Fifth = 320 - 246 = 74.
Answer: C) 74

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