Quote:
Originally Posted by abdul rehman3
in your answer 5 i wrote also 5(9, 99, 909, 9990 and like that)
i dont understand your answer of 4. it was not written in the question to add the prime numbers rather it was written that set of all prime numbers from 60 to 80. how can we conclude that we have to add prime number between the 60 and 80.
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i am not sure about answer number 5.
But according to options of question 4 we have to add all prime numbers. Otherwise set should be writing prime numbers.
When I added all prime numbers between 60 and 80 the answer came 351 and I ticked that option.