If n is an integer between 10 and 99, is n < 80?
a.The sum of the 2 digits of n is prime number
b.Each of the 2 digits of n is a prime number
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nisha.menon294
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If we take the first statement, It is in sufficient because 98 is 9 + 8 = 17, is a prime number and 16 is 1+6=7 is a prime number. So we cannot prove that n < 80. Not sufficient.
Second statement, if n > 80, every number should have a 8 and a 9. Numbers 8 and 9 are not prime numbers, so anything greater than 80 cannot be the value of n. Sufficient.
IMO answer is B
Second statement, if n > 80, every number should have a 8 and a 9. Numbers 8 and 9 are not prime numbers, so anything greater than 80 cannot be the value of n. Sufficient.
IMO answer is B
