a and b are in direct variation . if b =25 then a=5,find value of b when a=3
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B = 25 and A = 5
∴ A² = B
When A = 3
∴ A² = 9 = B
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0
Answer:
Given that, a = 5 and b = 25
And we have to find b, when a is reduced to 3.
It is direct variation so its constant will be b/a
Let the b which we have to find be = x
So the equation will be
=> b/a = x/a
=> 25/5 = x / 3
=> 3×25/5 = x
=> 15 = x
; x = 15
Ans => b = 15
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