A student scored 80 marks in his first test. After taking the third test, his average dropped from 82 to78 . What is the average of his 2nd and 3rd tests ?

Created: 7 years ago | Updated: 5 hours ago

Updated: 5 hours ago

Bangladesh Bank Bangladesh Bank - Assistant Director - 2001 গণিত গড় (Average)

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প্রশ্ন: A student scored 80 marks in his first test. After taking the third test, his average dropped from 82 to78 . What is the average of his 2nd and 3rd tests ?

2nd Test's Marks = 2x82 - 80 = 84
3rd Test's Marks = 3x78 - 2x2 = 234 - 164 = 70
The average of his 2nd and 3rd tests' marks = (84 + 70)/2 = 154/2 = 77

7 years ago

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A student scored 80 marks in his first test. After taking the third test, his average dropped from 82 to78 . What is the average of his 2nd and 3rd tests ?

প্রশ্ন: A student scored 80 marks in his first test. After taking the third test, his average dropped from 82 to78 . What is the average of his 2nd and 3rd tests ?

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