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29 Jun 2022, 07:00
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A
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Difficulty:
55%
(hard)
Question Stats:
52% (01:58) correct
48%
(01:48)
wrong
based on 61
sessions
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If x is an even integer between 20 and 80, is the units' digit of x equal to 2?
(1) The tens' digit and units' digit both are prime number.
(2) The sum of two digits is a prime number.
Are You Up For the Challenge: 700 Level Questions
(1) The tens' digit and units' digit both are prime number.
(2) The sum of two digits is a prime number.
Are You Up For the Challenge: 700 Level Questions
The only even prime number is 2
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Archit3110
Major Poster
29 Jun 2022, 08:15
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value of 20<x<80 where x is an even integer
#1
The tens' digit and units' digit both are prime number.
possible values of x 22,32,42,52,62,72
sufficient as unit digit is 2
#2
The sum of two digits is a prime number.
possible values of x = 30,32,50,52,70
insufficient as unit digit can be 0,2
option A
#1
The tens' digit and units' digit both are prime number.
possible values of x 22,32,42,52,62,72
sufficient as unit digit is 2
#2
The sum of two digits is a prime number.
possible values of x = 30,32,50,52,70
insufficient as unit digit can be 0,2
option A
Bunuel
