Question
Usha scored 70, 96, 75 and 67 marks for her first four Science tests. She wishes to improve her average mark by 2. How many marks must she score for her next Science test?
2 m

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Usha scored 70, 96, 75 and 67 marks for her first four Science tests. She wishes to improve her average mark by 2. How many marks must she score for her next Science test?