I’m back as usual with my tips and tricks, this time around, it’s a mathematics trick, precisely, percentage (%) tricks. They are tricks with which you can find 15 percent, i.e. 15% 20 percent i.e. 20% of any given whole number. Without wasting much time, I’ll start my explanation

Trick for finding 15 percent of any number
1. Choose a 2-digit number.
2. Multiply the number by 3.
3. Divide by 2.
4. Move the decimal point one place to the left.

Example:
1. If the number selected is 43:
2. Multiply by 3: 3 × 43 = 129
3. Divide by 2: 129/2 = 64.5
4. Move the decimal point one place to the left: 6.45
5. So 15% of 43 = 6.45.

See the pattern
1. If the number selected is 72:
2. Multiply by 3: 3 × 72 = 216
3. Divide by 2: 216/2 = 108
4. Move the decimal point one place to the left: 10.8
5. So 15% of 72 = 10.8.

Trick for finding 20 percent of any number
1. Choose a 2-digit number.
2. Divide the number by 5.

Example:
1. If the number selected is 38:
2. Divide by 5: 38/5 = 7.6
3. So 20% of 38 = 7.6.

See the pattern
1. If the number selected is 74:
2. Divide by 5: 74/5 = 14.8
3. So 20% of 74 = 14.8.


It's as simple as that! in my future posts, I'll be sharing more mathematics tricks. Hit the like button if you like these tricks and use the sharer tools below to share with friends

HOW TO USE YOUR MOBILE PHONE INTERNET CONNECTION AS SCIENTIFIC CALCULATOR

Before I share this vital tip with you, I'm sure you know that there are usually unexpected cases or time instances whereby you need a scientific calculator and you discover that you don't have it with you, even if it's with you it may be faulty. Worse of all, there may be no one you can borrow one from. It is true that your mobile phone has a calculator but it may not have the scientific functions you need at that point in time. It's my pleasure to inform you that if that your mobile phone has a working internet and can browse, you can perform your calculation.
Below is a tip on how you can go about this!

First thing you need to do is to launch your mobile phone browser, preferably, opera mini. (note: you can use any other browser on your mobile phone)

When your browser is ready, type web2.0calc.com in your address bar, and then click on ok for your scientific calculator to load. See how the calculator looks like here

you can now start calculating!


functions of the calculator and how to access them

basic scientific functions
The basic scientific functions are what you'll see directly as soon as your browser loads the calculator

matrix
scroll to the bottom left of the calculator, and select matrix. The calculator is capable of calculating matrices ranging from 2 vectors to 5 vectors, it can also calculate matrices ranging from 1 by 2 to 5 by 5 matrices.

Graph
The calculator can also plot graphs, to access this function, click on graph, also at the bottom left of the calculator.

Equations
The calculator has solver function, it can also solve equations ranging from 1 variable to 4 variables and also, it can handle polynomials 1 to polynomial 7, check the bottom left of the calculator and select solve to access this function.

Unit converter
The unit converter can contest Areas, bits, density, Energy, length etc. Click on units to access this function.




Finally, I'm happy to tell you that this calculator can supply you with formulas on various topics and explain their concepts to you. To access the formulas, scroll to the bottom right of the calculator and select formulary.

Check out the powerful calculating tool

I have a download link to a powerful calculator like this one that works on any java phone, I'll send you the download link if you request for it. Just post your request as comment with your email address, I'll send it to you.

Don't fail to share this info with your friends if truely you are their friends. Use any of the sharing tools below to do that.

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