Numbers-Data Intensity 4 :: Discussion


4.On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is?
A.47619
B.47719
C.48619
D.47649
Answer:  Option  A
Explanation:

By hit and trial, we find that

47619 x 7 = 333333.

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Published by:Michael Daani

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