if a: b= 2:3 and b: c=2:3, then a:b:c=?
Answers
Answered by
1
Answer:
9:6:4
Step-by-step explanation:
2:3
2:3
= 9:6:4
Therefore a:b:c = 9:6:4
Answered by
0
Answer:
165:169
Step-by-step explanation:
Given:
a : b = 2 : 3 and b : c = 2 : 3
Formula Used:
If a : b = x : y and b : c = y : z
Then, a : b : c = x : y : z
Calculation:
a : b = 2 : 3 ---(1)
b : c = 2 : 3 ---(2)
⇒ a : b : c = 4 : 6 : 9
Now, (3a^2 + b^2 + c^2) : (a^2 + 2b^2 + c^2)
⇒ (3 × 4^2 + 6^2 + 9^2) : (4^2 + 2 × 6^2 + 9^2)
⇒ (3 × 16 + 36 + 81) : (16 + 2 × 36 + 81)
⇒ (48 + 36 + 81) : (16 + 72 + 81)
⇒ 165 : 169
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