Question

Which number produces an irrational number when multiplied by 1/5

Answer 1

Lets solve

Let it be x

`\\ \sf\longmapsto (x(1))/(5)=(p)/(q)`

`\\ \sf\longmapsto (x)/(5)=(p)/(q)`

• π is not the answer as its nit a rational no.
• -1.4.. and √11 are also impossible .
• Hence option a is correct