Question

The marks obtained by raja in maths, physics and chemistry are in the ratio 2: 3: 4. If the total marks that- raja obtained in these three subjects is 189, how many marks did raja score in maths?

Answer 1

Answer:

Raja's marks in maths will be 42.

Step-by-step explanation:

Given ratio,

Maths : Physics ; Chemistry = 2 : 3 : 4

Now let, Marks in Maths be 2x

             Marks in Physics be 3x

           & Marks in Chemistry be 4x

According to Question, we have-

Total marks = 189

=> Maths + Physics + Chemistry = 189

=> 2x + 3x + 4x = 189

=> 9x = 189

=> x = 189 / 9

=> x = 21

Therefore, Marks in Maths = 2x

                                          = 2 x 21

                                          = 42 .

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