Test Index

UPTET Paper 1 Model Test 2

Section: Mathematics

Question : 97 of 150

Marks: +1, -0

What is the square root of 0.16?

Solution:

Concept:

Square root of a decimal can be found by converting it to a fraction or by checking which number multiplied by itself gives the decimal.

Explanation:

Write

0.16

\frac{16}{100}

. Then

\sqrt{0.16} = \sqrt{\frac{16}{100}} = \frac{\sqrt{16}}{\sqrt{100}} = \frac{4}{10} = 0.4

. Alternatively,

0.4 \times 0.4 = 0.16

confirms the answer. Options A (

0.004

) and B (

0.04

) are too small; option D (

4

) is too large.

Answer:

Option C:

0.4

Go to Question:

Prev Question

Next Question