Problems on Numbers Example Problems Aptitude Questions

Posted On:February 27, 2019, Posted By: Latest Interview Questions, Views: 274, Rating :

Best Problems on Numbers Example Problems

Dear Readers, Welcome to Problems on Numbers Objective Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your Job interview for the subject of Problems on Numbers MCQs. These objective type Problems on Numbers questions are very important for campus placement test and job interviews. As per my experience good interviewers hardly plan to ask any particular question during your Job interview and these model questions are asked in the Banks, SSC, Railways, Postal and many Govt Jobs.

Number System Problems and Solutions

1. The sum of two numbers is 22. Five times one number is equal to 6 times the other. The bigger of the two numbers is

Explanation:

Let the numbers be x and (22 - x).

Then, 5x = 6(22 - x)

     11x = 132

       x= 12.

So, the numbers are 12 and 10.

 

2. In a pair of fractions, fractions A is twice the fraction B and the product of two fractions is 2/25. What is the value of fraction A?

Explanation:

A =2B ‹=› B= 1/2 A.

So, AB = 2/25

‹=› 1/2A2= 2/25

‹=› A2= 4/25

A= 2/5.

 

3. The sum of two numbers is 184. If one-third of the one exceeds one-seventh of the other by 8, find the smaller number.

Explanation:

Let the numbers be x and (184 - x). Then,

x / 3 - (184-x)/7 = 8 <=> 7

 

4. Three times the first of three consecutive odd integers is 3 more than twice the third. The third integer is:

Explanation:

Let the three integers be x, x + 2 and x + 4.

Then, 3x = 2(x + 4) + 3      x = 11.

Third integer = x + 4 = 15.

 

5. The sum of two number is 25 and their difference is 13. Find their product.

Explanation:

Let the numbers be x and y.

Then, x + y = 25 and x - y = 13.

4xy = (x + y)2 - (x- y)2

   = (25)2 - (13)2

   = (625 - 169)

   = 456

 xy = 114.