Correct Answers: | |

Wrong Answers: | |

Unattempted: |

### Question 1

x should be replaced by which minimum number so that 99938x3687 is completely divisible by 9?

### Question 2

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

### Question 3

How many odd numbers are there between -1386 and 814?

### Question 4

What is the digit at units place: 7575 × 1390 × 9505?

### Question 5

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.

### More Chapters | See All...

Probability | Hidden Figures | Paper Cutting | Basic Simplification | Passwords and Inputs | Problems on Numbers | Alligations and Mixtures | Bricks and Blocks | Areas | Analogies | More...

This Blog Post/Article "Problems on Numbers Quiz Set 012" by Parveen (Hoven) is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Updated on 2017-05-17.