# Decimal Numbers Quiz Set 005

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 Correct Answers: Wrong Answers: Unattempted:

### Question 1

What is 0.009 × 0.18?

A

\$1.62 × 10^{-3}\$.

B

\$1.62 × 10^{-2}\$.

C

\$1.62 × 10^{-4}\$.

D

\$1.62 × 10^{-1}\$.

Soln.
Ans: a

### Question 2

What is \$3.914 - (-0.8) + 0.09 - (-0.03)\$?

A

+4.834.

B

-4.834.

C

+4.348.

D

-4.348.

Soln.
Ans: a

The given expression is same as \$3.914 + 0.8 + 0.09 + 0.03\$, then by simple addition we get \$3.914 + 0.8 + 0.09 + 0.03 = 4.834\$.

### Question 3

What is x in \$0.001/x = 0.1\$?

A

0.01.

B

0.1.

C

1.0.

D

0.001.

Soln.
Ans: a

The expression becomes \$x = {1/1000} × {10}\$ = 0.01.

### Question 4

What is \$3.911 + 0.1 + 0.05\$?

A

4.061.

B

3.996.

C

3.975.

D

4.050.

Soln.
Ans: a

By simple addition we get \$3.911 + 0.1 + 0.05 = 4.061\$.

### Question 5

What is x in \${374/0.0374} = {3.74/x}\$?

A

\$3.74 × 10^{-4}\$.

B

\$3.74 × 10^{-3}\$.

C

\$3.74 × 10^{-5}\$.

D

\$3.74 × 10^{-2}\$.

Soln.
Ans: a
Transposing, x = \$3.74 × {0.0374/374}\$ which gives 0.000374, which, in scientific form is \$3.74 × 10^{-4}\$.

This Blog Post/Article "Decimal Numbers Quiz Set 005" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Updated on 2017-04-07.

Posted by Parveen(Hoven),
Aptitude Trainer

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