Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

What is $9.326 + 0.7 + 0.03$?

### Question 2

What is $4.823 + 0.7 + 0.05$?

### Question 3

Which is the smallest?

**A**

$0.001^3$.

**B**

$1/0.001$.

**C**

$0.001$.

**D**

$0.001^2$.

**Soln.**

**Ans: a**

We know that if a number is less than 1, then it becomes smaller and smaller as it is raised to higher and higher positive powers. Now, $1/0.001$ is same as $0.001^{-1}$. The three powers of 0.001 given to us are -1, 1, 2 and 3. Out of these 3 is the most positive, so, $0.001^3$ is the smallest.

### Question 4

What is ${(-82) × 7.2 - 32 × (-3.4)}/2.5$?

**A**

$-192{16/25}$.

**B**

$-192{12/25}$.

**C**

$+192{16/25}$.

**D**

$+192{12/25}$.

**Soln.**

**Ans: a**

Observe that all fractional numbers are having one digit to the right of the dot. So we can cancel all the dots and get a plain expression: ${(-82) × 72 - 32 × (-34)}/25$. We can now simpilfy the minus signs to get ${(32 × 34) - (82 × 72)}/25$ which equals ${-4816/25}$, which is same as: $-192{16/25}$

### Question 5

What is ${0.60 × 0.60 × 0.60 + 0.04 × 0.04 × 0.04}/{4.20 × 4.20 × 4.20 + 0.28 × 0.28 × 0.28}$?

### More Chapters | See All...

Alphabet Number Series | Analogies | Problems on Trains | Deductive Reasoning | Ratio and Proportion | Logarithms | Statements and Conclusions | Profit and Loss | Areas | Averages | More...

This Blog Post/Article "Decimal Numbers Quiz Set 015" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.