Question

Which pair of elements has similar properties
a) 13, 31
b) 11,20
c) 12, 10
d) 21, 33

Answer 1

12, 10...though im not sure

Answer 2

Answer:

Explanation:

Which pair of elements has similar properties  

a) 13, 31  

b) 11,20  

c) 12, 10  

d) 21, 33

Let see each pair and find what is similar in those

13  , 31  - both are prime numbers  and both are also odd numbers so we can say this pair has similar property

12 , 10 - both are even numbers

so we can say this pair has similar property

21 , 33 both are divisible by 3   and both are odd numbers

so we can say this pair has similar property

b) 11,20   - no similar property ( as one number is odd , other is even , one is prime other is non-prime)