A man has a certain number of small boxes to pack into parcels. If packs 3, 4, 5 or 6 in a parcel, he is left with one; if he packs 7 in a parcel, none is left oyer. What is the number of boxes he may have to pack?

a) 106

b) 301

c) 309

d) 400

View Answer
Option – b.