Question

Which number produces a rational number when added to 0.42?

A. Pi
B.0.2645751311...
C.3/8
D. √3

Answer 1

`\text{The number } (3)/(8)=0.375 \text{ when added to 0.42 results a rational number}`

Explanation:

Given the number 0.42

we have to choose the number which produces a rational number

The number 0.42 is a rational number as it is terminating after decimal point.

As the addition of two rational number results a rational number.

Hence, the number which is rational or we can say the number which is terminating after decimal point added to 0.42 gives a rational number.

`\text{The number } (3)/(8)=0.375 \text{ only number therefore when added to 0.42 results a rational number}`

0.42+0.375=0.795 which is rational.

Hence, option C is correct

Answer 2

C

Explanation:

The whole question is a distracting part. When you add an irrational number to a rational one, it stays irrational, so the question is... Which of these is a rational number. And it is 3/8