What percentage of number from 1 to 80 have squares that end the digit 9?
Created: 5 months ago | Updated: 3 days ago
Admission জাহাঙ্গীরনগর বিশ্ববিদ্যালয় G ইউনিট উচ্চতর গণিত
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The average of 4 numbers is X. If the average of first 3 numbers is Y and the average of last 2 numbers i Z, what is the second number

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In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?

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Created: 5 months ago | Updated: 1 day ago
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when the integer k is divided by 7, the remainder is 5. which of the following expressions below when divided by 7, will have remainder of 6? I. 4k +7 , II. 6k + 1 III. 8k +1

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