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bottom line technicals

· started a discussion

· 1 Months ago

not upto mark (Question: 336950.0 )

mains question solutions are not that good,tier 1 was nice.

Question:

There are three bottles of mixture of syrup and water of ratios 2 : 3, 3 : 4 and 7 : 5. 10 litres of first and 21 litres of second bottles are taken. How much quantity from third bottle is to be taken so that final mixture from three bottles will be of ratios of 1 : 1?  

Options:
A)

25 litres

B)

20 litres

C)

35 litres

D)

30 litres

Solution:

Ans: (d)

Syrup=4+9+7x=13+7x
Water=6+12+5x=18+5x
13+7x=18+5x
x=2.5
12*x=12*2.5=30 lts

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