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bharat bhushan

· started a discussion

· 1 Months ago

Is this question can be solved by alligation method.If yes then how????? (Question: 259963.0 )

Is this question can be solved by alligation method.If yes then how?????

Question:

A mixture of 30 litres contain spirit and water in the ratio of 7 : 3. How much water should be added to it so that the ratio of spirit and water becomes 3 : 7?

Options:
A)

40 litres

B)

42 litres

C)

45 litres

D)

49 litres

Solution:

Ans: (a)

  

Amol Deep

· commented

· 1 Months ago

7/10 .................... 0 (in water spirit concentration is 0)
3/10
3:4
thus for 30 litres we need 40 litres water
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