ayushree goal is to practise 20 minutes math for every 60 minutes of class time how many minutes of maths practise should she do if the class is 90 minutes long
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Maths practised in 60 min maths time = 20 min
Maths practised in 90 min maths time = 20/60 * 90 = 30 ( By Unitary Method)
Maths practised in 90 min maths time = 20/60 * 90 = 30 ( By Unitary Method)
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