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Number of student studing in colleges A and B are in the ratio `3:4` respectively. If 50 more sutdents join college A and there is no change in the number of students in college B, the respective ratio becomes `5:6`. What is the number of students in college B?A. 450B. 500C. 400D. 600 |
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Answer» Correct Answer - D Let total number of students in collage `A=3x` and total number of students in collage `B=4x` After 50 more students join collage A New Ratio ` =(3x+50) /(4x)=(5)/(6)` `rArr 18x +300 =20x` `rArr 2x =300` `rArr x=(300)/(2)=150` Total number of students in college `B=4x =4xx 150 =600` |
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