the field.
A2. The sum of three consecutive multiples of 8
is equal to eight times the sum of the first two
consecutive multiples of 6. Find each of the three
multiples of 8
plz answer fast if possible and plz also slove on a paper
Answers
GIVEN:
Sum of three consecutive multiples of 8 is equal to eight times the sum of the first two consecutive multiples of 6.
TO FIND:
The three multiples of 8.
SOLUTION:
Let,
The three multiples of 8 be x, x + 8 and x + 16
The first two multiples of 6 are 6 and 12
According to the question,
x + x + 8 + x + 16 = 8 ( 6 + 12)
3x + 24 = 144
3x = 144 - 24
==> 3x = 120
==> x = 120/3
==> x = 40
First multiple = 40
Other multiples:
x + 8 = 40 + 8 = 48
x + 16 = 40 + 16 = 56
Therefore, the consecutive multiples of 8 are 40, 48 and 56
Given:
- Sum of three consecutive multiples of 8 = 8 × sum of first 2 consecutive multiples of 6
To find:
- Other three multiples of 8
Solution:
Let first multiple be x
Then, other 2 multiples be x + 8 , x + 16
The 1st two multiples of 6 are : 6 , 12
According to the question:
→ x + (x + 8) + (x + 16) = 8(6 + 12)
→ 3x + 24 = 8(18)
→ 3x = 144 - 24
→ 3x = 120
→ x = 120/3
→ x = 40
Finding : Other three multiples
→ x + 8 = 40 + 8 = 48
→ x + 16 = 40 + 16 = 56
→ x + 24 = 40 + 24 = 64
Hence , Other three multiples are 48 , 56 , 64