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Vijay cheryala

· started a discussion

· 1 Months ago

solution here (Question: 368378.0 )

let length be L of both so
1 st L/4 burns in one hour, 2 nd L/3 in one hour
let t be required time to get 2/1 of heights then
(L-L/4*t)/
(L-L/3*t) =2/1 solve for t u get the answer

Question:

Two candles of the same height are lighted at the same time. The first is consumed in 4 hours and the second in 3 hours. Assuming that each candle burns at a constant rate, in how many hours after being lighted was the first candle twice the height of the second? 

Options:
A)

34    hours

B)

112    hours

C)

2 hours

D)

225    hours

Solution:

Ans:(d) 

  

Knowledge Expert

· commented

· 1 Months ago

Dear student
Given answer is correct
Please solve carefully

Best Wishes
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