google-site-verification: google5db3bc4d7edda0a0.html Brain teasers and puzzles: Math reasoning-Puzzle 325 google-site-verification: google5db3bc4d7edda0a0.html

menu

Math reasoning-Puzzle 325

 By Panos Kalliantasis

 Test your reasoning skills
Can you find the logical relation of the equations and then find the missing number?

 

 

 If

4*5=21

5*6=38

6*7=69

Then

7*8=??

 Try to solve it yourself and discover the rule that the equations follow.

Scroll down to see the answer



The pattern is:
A*B+(1^3,2^3,4^3,5^3,......)
4*5+1^3=20+1=21
5*6+2^3=30+8=38
6*7+3^3=42+27=69
7*8+4^3=56+64=120
Correct answer is 120


70 Math reasoning problems-eBook

 70 selective math reasoning exercises to practice various arithmetic reasoning patterns
Try to solve them yourself and discover the rule that the equations follow.


In each exercise the answer and detailed reasoning are given to compare your answers and interactively develop your skills.



 

  How to solve "Number Series"

The best Guide-Ebook

Step by step you will learn to face any question in the series of numbers.

Get it Now!19,90

 
 Increase your confidence and get good grades in the competitive exams.
 

No comments:

Post a Comment

<h2>Complete the number series158</h2>

 Number series for competitive exams Can you complete the following number series?