Study the given information carefully to answer the given questions:
Seven boxes- A, B, C, D, E, F and G are kept one above the other, but not necessarily in the same order. Each box has a different number viz. 2, 4, 5, 7, 8, 9 and 12, but not necessarily in the same order. Only three boxes are kept between G and box number 9. Only two boxes are kept between G and B. B is kept at one of the positions below box number 9. Only one box is kept between B and box number 4. E is kept immediately below box number 12. E is kept at one of the places above box number 9. There is only one box between E and the box having number less than E. E's box number is neither 7 nor 8. Only two boxes are kept between box number 5 and F. The difference between F and the box immediately below it is less than four. C is not the topmost box. C's box number is not 4. Only two boxes are kept between C and A.
Only three boxes are kept between G and box number 9. Only two boxes are kept between G and B. B is kept at one of the positions below box number 9, => Box B is kept immediately below box number 9 and box G is placed 3 places below box B.
E is kept immediately below box number 12. E is kept at one of the places above box number 9, => Box number 12 is kept at top and E is placed immediately below it.
Box number 9 is placed immediately below E and box G is placed at last position.
Only one box is kept between B and box number 4, => Box number 4 is kept immediately above box G.
C's box number is not 4 and only two boxes are kept between C and A, => A's box number is 4 and C is kept immediately above B.
There is only one box between E and the box having number less than E. E's box number is neither 7 nor 8, => E's box number is 5 and B's box number is 2.
The difference between F and the box immediately below it is less than four, => F's box number is 7 and G's is 8.
Number of boxes between E and box numbered 4 (i.e, box A) = 3
=> Ans - (A)
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