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Let the total number of students be x Average marks obtained by the students = 75 Total marks = 75x After correcting the quantitative mistakes the average decreased by (75-60) = 15 marks Total reduction = 15 × 100 = 1500 Now According to the Question, (75x-1500)/x = 70 70x = 75x – 1500 X = 300 Total number of students = 300
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If a shopkeeper hikes the purchasing value of an item by 56% and gives it a discount of 56% on the face value for selling it, then know the total percen...
A shirt is marked 50% above the cost price and sold after a discount of Rs.115 at Rs.545. Find the cost price of the shirt.
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