What will be the thousands digit of the integer Q, given that the thousands digit is a prime number?
(1) Q = 24× 32× 53× 132
(2) Q when rounded off to the nearest ten thousands is 3040000
This one is actually pretty straight forward if you dont get into dirty calculations
from question we want thousands digit of Q.
Stem 1 , it gives what Q is - whatever be the result of calculation we would have a final number from which we can tell the thousands digit. Sufficient.
Stem 2, it says when Q is rounded off to nearest ten thousand it is 3040000 . Remember we dont have Q yet. From this statement thousand digit could be anything from 0-9 (0-4 will round down to this number 5-9 will round up to this number). Clearly insufficient.
Hence Ans is A.
Hope it helps.
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