If 25x8913 is divisible by 3, where x is single digit odd number and y – x = 1, then find the value of √(2xy). Options 2 √15 4 √15 3 √15 7 √15
Question
Solution 1
First, we need to know that a number is divisible by 3 if the sum of its digits is divisible by 3.
The sum of the digits in the number 25x8913 is 2 + 5 + x + 8 + 9 + 1 + 3 = 28 + x.
For 28 + x to be divisible by 3, x must be 1 or 4 or 7. But the question states that x is an odd number, so x cann Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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