What is the average (arithmetic mean) of the values 39,40,39,45,42,35,47

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Job Solution First Security Islami Bank Ltd First Security Islami Bank Ltd | Probationary Officer | 19-02-2021 গণিত
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A seller gave 5% discount on the tag price of a book and made a profit of 25% on cost. If the cost of the book was Tk. 380, what was the tag price?

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At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?

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If k is divisible by 2, 3 and 15, which of the following is also divisible by these numbers?

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The price of a DVD Player is discounted by 10 percent, and the reduced price is then discounted again by 10 percent. The series of successive discounts is equivalent to a single discount of ----

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A restaurant meal costs Tk. 35.50 and there was no tax. If the tip was more than 10 percent but less than 15 percent of the cost of the meal, then the total amount paid must have been between ---

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