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एक केन दो प्रकार के तरलो A और B के `7:5` के अनुपात में मिश्रण से पूरी भरी है यदि केन से 9 लीटर मिश्रण निकाल लिया जाए और उसके स्थान पर उतनी ही मात्रा में तरल B भर दिया जाए तो केन में A और B का अनुपात `7:9` हो जायेगा केन की क्षमता कितनी है ?
A. 21 litres
B. 20 litres
C. 10 litres
D. 36 litres

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Correct Answer - D
According to the question
(प्रश्नानुसार )
image
4 units `rarr 9`
1 Unit `rarr 9/4`
16 units `=9/4xx16=36`
`:.` The capacity of the can = 36 litres (केन की क्षमता लीटर में )

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