Math, asked by saraswathyrangan, 18 days ago

The students in 3 hatches in school are in the ratio 2:3:5. If 20 studen & in each hatch are increased than the ratio changes to 4:5: 7. Find the total number of students in the 3 before the increase.​

Answers

Answered by keshavdagar3655
2

Answer:

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Step-by-step explanation:

If 20 students are increased, (i)The students in the three batches became (2x+20), (3x+20) and (5x+20). (ii)The ratio changes to 4:5:7. ... Hence, number of students in the three batches before the increase were 20, 30 and 50

Answered by tutejatwisha
2

Answer:

Number of students in hatch 1=20

Number of students in hatch 2=30

Number of students in hatch 3=50

Step-by-step explanation:

(2x+20)+(3x+20)+(5x+20)=4x+5x+7x

10x+60=16x

-6x=-60

x=-60/-6

x=10

2x=10*2

   =20

3x=10*3

   =30

5x=10*5

    =50

Hence the number of students the three hatches 1,2,3 respectively are

20,30and50

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