Question

1) student in 3 room are in ratio 2:3:5 If 20 are increased in each room ratio becomes 4:5:7 No of student before increase were ​

Answer 1

originally A : B : C

2 : 3 : 5

) 2 ) 2 ) 2

After adding 4 : 5 : 7

20 student in each class

2 Unit = 20

1 Unit = 10

º

º o Originally 2×10+3×10+5×10

20 + 30 + 50 = 100

Part of solved Ratio and proportions Question and Answer >> Apptitude >> Ratio and proportions