Question
The sum of three consecutive odd natural numbers each
divisible by 3 is 81. Which number is the largest number among the three numbers?Solution
Let the first number be x Other numbers be (x+6) and (x+12) According to the question x + (x+6) + (x+12) = 81 3x = 63 x = 21 Largest number = 21 + 12 = 33
Solve for x in the equation: 3(x + 2) + 2(2x - 5) = 5x + 9
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If a = 32, b = c = 31, then find the value of a 3 + b 3 + c 3 – 3abc.
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
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