If a + b + c + d = 13, find the minimum possible value of a3 + b3 + c3 + d3, given that a, b, c and d are all positive integers.
Question
If a + b + c + d = 13, find the minimum possible value of a3 + b3 + c3 + d3, given that a, b, c and d are all positive integers.
Solution
The problem is asking for the minimum possible value of a³ + b³ + c³ + d³, given that a, b, c, and d are all positive integers and their sum is 13.
Here are the steps to solve the problem:
Step 1: Since a, b, c, and d are all positive integers, the smallest value they can have is 1.
Step 2: To minimize a³ + b³ + c³ + d³, we should try to make a, b, c, and d as small as possible.
Step 3: The smallest values we can assign to a, b, c, and d while still having their sum equal to 13 are 1, 1, 1, and 10.
Step 4: Substituting these values into the equation a³ + b³ + c³ + d³ gives 1³ + 1³ + 1³ + 10³ = 1 + 1 + 1 + 1000 = 1003.
So, the minimum possible value of a³ + b³ + c³ + d³, given that a, b, c, and d are all positive integers and their sum is 13, is 1003.
Similar Questions
If A, B, C, D, E, F and G are seven natural numbers, with no three of the seven being equal and Y = A + 2B + 3C + 4D + 5E + 6F + 7G, what is the minimum possible value of Y?
Q 56. If three positive numbers x, y and z are in A.P. such that xyz = 27 then the minimum possible value of y is: Ops: A. 1.3 B. 3 C. 6 D. 6.3
a, b, c and d are four distinct positive integers that satisfy a + b + c + d = 60. Find the maximum possible value of (a – b)2 + (a – c)2 + (a – d)2 + (b – c)2 + (b – d)2 + (c – d)2.
What is the least common multiple of 10, 13 and 3?
If an integer K is divisible by 2, 5 and 13. What is the next largest number that is divisible by all the 3 given numbers?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.