Question

the set of all natual numbers less than 25, which are multiples of 3

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Answer 1

Explanation:

$\huge {\boxed {\red{\boxed{\green {Answer }}}}}$

$\fcolorbox {red} {aqua} {A~ =~ (3,~6,~9,~12,~15,~18,~21,~24) }$

Answer 2

Answer:

x:x is a positive even number }

(ii) { x:x is a whole number and x<20 }

(iii) { x:x is a positive integer and multiple of 3 }

(iv) { x:x is an odd natural number and x<15 }

(v) { x:x is a letter in the word 'computer' }