The average of Selim's marks in 7 subjects is 75. His average in six subjects excluding Science is 72. How many marks did he get in Science ?

The average of Selim's marks in 7 subjects is 75. His average in six subjects excluding Science is 72. How many marks did he get in Science ? Correct Answer 93

Hints:average mark = মোট 7 টি subject এর mark /7 science এর মার্ক = ( 7 × 75 - 6 × 72) = 93
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