9.
If a + b-c:b+c-a: a + C-b= 5:6:7, then find
a:b:c
(A) 12:13:11
(B) 12:11:13
(C) 13:12:11
(D) 13:11:12
Answers
Answered by
12
Answer:
Since They are ratio i have taken a constant term x.
Attachments:
ErwinSchrodinger:
he he
in which class u are?
i gave my 12th board
and u!
okay
i am in 11th.
can u tell me why u multiply the ratio with 2/x after equating
I multiplied with 1/x to eliminate x and by 2 to remove the fraction and convert the ratios to whole number.
okay thanks
no perablum.
Answered by
4
Answer:
Option (B) is the correct option.
Step-by-step explanation:
Given that:
a + b - c : b + c - a : a + c - b = 5 : 6 : 7
Taking the multiplying factor as 'x'
=> a + b - c = 5x --(i)
b + c - a = 6x -- (ii)
a + c - b = 7x --(iii)
Adding equation (i) and (ii)
=> a + b - c + b + c - a = 5x + 6x
=> 2b = 11x
=> b = 11x/2
Adding equation (ii) and (iii)
=> b + c - a + a + c - b = 6x + 7x
=> 2c = 13x
=> c = 13x/2
Adding equation (i) and (iii)
=> a + b - c + a + c - b = 5x + 7x
=> 2a = 12x
=> a = 12x/2
We have to find a : b : c
=> 12x/2 : 11x/2 : 13x/2
=> 12 : 11 : 13
Therefore, a : b : c = 12 : 11 : 13
Therefore, option (B) is the correct option.
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