Question

In a class, 10% students like tea but not coffee, 20% like coffee but not milk and 30% like milk but
not tea. 12 students like all the three drinks and there is no one who likes none of the drinks. How
many students are there in the class?​

Answer 1

Answer:

40

Step-by-step explanation:

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Answer 2

Answer:

30 students

Step-by-step explanation:

(because we need 3:5 for getting 60%)-1

10%+20%+30%=60%

so by this we can assume that 60%=18/30×100-(because the ratio of 18/30 is 3:5)

this means that in 60%there are 18 students

and 30 means 100%

for checking you can add 18(60%) and 12 you will get 30(100%) only

because if addition is less or more then it will not correct

this one is correct answer

and this literally so much hard