Question

the studnets in class three in ratio 2:3:5.If 20 students are increased in each the ratio changes to 4:5:7.what is original total number of students​

Answer 1

Step-by-step explanation:

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Answer 2

➪2x ; 3x ; 5x

⇒20 is added in every ratio

⇒2x + 20 ; 3x +20 ; 5x +20

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⇒2x + 20 + 3x + 20 + 5x + 20 = 4x + 5x + 7x

⇒10x + 60 = 16x

⇒60 = 16x - 10x

⇒60 = 6x

$\boxed{ \boxed{\fcolorbox{red}{aqua}{10 = x}}}$

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➪Total no. of students = 2x + 3x + 5x

⇒2(10) + 3(10) + 5(10)

⇒20 + 30 + 50

$\boxed{\boxed{\boxed{\fcolorbox{red}{aqua}{⇒100}}}}$

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