The sum of three consecutive multiples of 8 is 312 find the multiples
Answers
The multiples are 96 , 104 , 112
Given :
The sum of three consecutive multiples of 8 is 312
To find :
The multiples
Solution :
Step 1 of 2 :
Form the equation
Three consecutive multiples of 8 are 8x , 8x + 8 , 8x + 16
Here it is given that sum of three consecutive multiples of 8 is 312
So by the given condition
Step 2 of 2 :
Find the multiples
1st multiple = 8x = 8 × 12 = 96
2nd multiple = 8x + 8 = 96 + 8 = 104
3rd multiple = 8x + 16 = 96 + 16 = 112
Hence the multiples are 96 , 104 , 112
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Given,
The sum of 3 consecutive multiples of 8 = 312
To find,
The three consecutive multiples of 8.
Solution,
These three consecutive multiples of 8 will be 96, 104 and 112.
We can easily solve this problem by following the given steps.
We know that we get the two consecutive multiples of 8 by adding 8 to its previous multiple.
Let's take the first multiple of 8 to be x.
Then, the second multiple will be (x+8) and the third multiple will be (x+16).
The sum of 3 consecutive multiples of 8 = 312
x + (x+8) + (x+16) = 312
3x + 24 = 312
3x = 312 - 24 ( Moving 24 from the L.H.S. to R.H.S. will change its sign from plus to minus.)
3x = 288
x = 288/3
x = 96
So, the first multiple of 8 will be 96.
Then, the second multiple will be 104 (96+8).
The third multiple will be 112 (96+16).
Hence, the three consecutive multiples of 8 will be 96,104 and 112.