Question

friends little helpplz for my small brother

Answer 1

ans is(a)393

(589)= 5×8^2+8×8^1+9×8^0

= 5×64+64+9

=393 in decimal system

explain : conversation of octal to decimal

in the octal to decimal conversion each digit of octal multiplied by it's weighted position and each of the weight value is added together to get the decimal num.

(b)512

1000 = 1×8^3+0

=512

(c)613

945 =9×8^2+4×8^1+5×8^0

= 64×9+32+5

= 576+37

=613

so it's your ans

If I do any mistakes

I say advance

sorry....