Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

A number is multiplied by 8, then 18 is added to it. The result remains the same if 11 is multiplied to the number and then 45 subtracted. What is the number?

### Question 2

The difference between a two digit number and the one obtained by reversing its digits is 72. If one of the digits is 0, what is the other?

**A**

8.

**B**

9.

**C**

10.

**D**

11.

**Soln.**

**Ans: a**

Let the numbers be a and b. ab = 10a + b, and ba = 10b + a. The difference is 10a + b - (10b + a) = 9(a - b). It is given that 9(a - b) = 72, ⇒ a - b = $72/9$ = 8, ⇒ the difference between the digits is 8. If one of the digits is 0, the other can be 8.

### Question 3

If $5{3/4}$ of a number is 3, what is ${3/14}$ of that number?

### Question 4

The difference between a two digit number and the one obtained by reversing its digits is 81. If one of the digits is 6, what is the other?

**A**

Cannot exist.

**B**

4.

**C**

5.

**D**

0.

**Soln.**

**Ans: a**

Let the numbers be a and b. ab = 10a + b, and ba = 10b + a. The difference is 10a + b - (10b + a) = 9(a - b). It is given that 9(a - b) = 81, ⇒ a - b = $81/9$ = 9, ⇒ the difference between the digits is 9. If one of the digits is 6, the other cannot be determined.

### Question 5

The sum of three consecutive even integer numbers is -1752. The middle among the three is?

### More Chapters | See All...

Verification of truth | Pipes and Cisterns | Image Series | Time and Work | Data Sufficiency | Surds and Indices | Logarithms | Averages | Alphabet Number Series | Stocks and Shares | More...

This Blog Post/Article "Problems on Numbers Quiz Set 017" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2019-08-18.