Question
Sabrina scored 95, 70, 87 and 80 marks for her first four History tests. She wishes to improve her average mark by 3. How many marks must she score for her next History test?
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Sabrina scored 95, 70, 87 and 80 marks for her first four History tests. She wishes to improve her average mark by 3. How many marks must she score for her next History test?