Question

how many 3 digits even number can be made using the digits 1,2,3,4,5,6,7,if no digits is repeated.​

Answer 1

Answer:

as many as you can make three digit number by repeating

Answer 2

Answer:

there are 3 even no. .so in right sight first digit is may be 2,4,or 6.

then there are 6 no.tens space is fill by the any 6 no.

then there are 5 no. are left.hundred space is fill by any 5 no.

hence total 3digits even numbers=5×6×3=90