Question

Match each of the set on the left in the Roaster form with the same set on the right described in set-builder form :
(i) {1,2,3,6} (a) {x : x is a prime number and a divisor of 6}
(ii) {2,3} (b) {x : x is an odd natural number less than 10}
(iii) `{M,A,T,H,E,I,C,S}` (c) `{x : x " is natural number and divisor of 6"}`
(iv) `{1,3,5,7,9}` (d) `{x : x " is a letter of the word MATHEMATICS"}`.

Answer 1

(a) {x : x is a prime number and a division of 6} = {2,3}
(b) {x : x is an odd natural number less than 10}
`= {1,3,5,7,9}`
(c) {x : x is a natural number and divisor 6}
= {1,2,3,6}
(d) {x : x is a letter of the word MATHEMATICS}
`={M,A,T,H,E,I,C,S}`
`:. (i) harr (c) (ii) harr (a)`
`(iii) harr (d) (iv) harr (b)`.