Others Maths Puzzle

How many 5 digit numbers exist,divisible by 3, which are in the form 'a3b6c' where a,b,c are digits ?

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Others Other Question

How many 6 digit number exist divisible by 6, which are in the form 'a1b3c2', where a,b,c are digits? A)Clarity had its limits, though.
B)Still, Greenspan was very careful to keep financial markets informed, telegraphing every Fed move.
C)When a senator said that he understood the chairman's comment, Greenspan famously replied: "If you understood what I said, I must have misspoke."
D)The policy of "no surprises" was a major factor in keeping financial markets smooth.
E)Almost never did the FOMC surprise the markets.

1)ABCED 2)EDACB 3)ACBED 4)DECBA