Jamil's average score in 4 tests was 80 out of a possible 100 .If his scores in 2 of the tests were 65 and 70 ,what is the lowest that either of his other scores could have been?
ক. 70
খ. 80
গ. 90
ঘ. 85
উত্তর: 85
ব্যাখ্যা: This problem is intended [গণিত] help us understand averages. If the average of four tests is 85 , that means that [গণিত] Two scores are given, so [গণিত] (multiply both sides by 4 ) [গণিত] (subtract 155 from both sides) Jim needs [গণিত] get a total of 185 points on the last two tests. So, even if he gets 100 on one of them, the lowest score that he can get on the other is 85 .
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