1) In the library there are 1500 books. Among these books the ratio of books about science to that about commerce is 1:2. Determine the number of books about science to be purchased so that this ratio becomes 3:5.
2) In circket match the ratio of the runs scored by Sourav and Sachin is 11:12 and the ratio of the runs scored by Sourav and Rahul is 9:8. Find the ratio of the runs scored by Sourav and Rahul.
3) The ratio between paddy and rice obtained from it is 3:2 and the ratio between wheat and suji prepared from it is 4:3. Find the ratio between the rice and suji obtained from 100kg of paddy and the same quantity of wheat respectively.
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Answer:
1. Total books:1500
Ratio of books about science to commerce: 1:2
science book=1500x1/3=500
commerce book=1500x2/3=1000
for ratio: 3:5
science=600
commerce=1000
2.question is wrong
3.
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