Question

State the cardinal number of : 1) {prime numbers less than 10}. 2) {Colours of rainbow} 3) {letters in the word 'school'}​

Answer 1

Answer:

1.4

2.7

3.5

Step-by-step explanation:

1.{2,3,5,7}=n(s)=4

2.{violet,indigo,blue,green, yellow,orange,red}

n(s)=7

3.{s,c,h,o,l}

n(s)=5