(215)

1% = 1/100 = 0.01 2% = 2/100 = 0.02 = 1/50 3% = 3/100 = 0.03 4% = 4/100 = 0.04 = 1/25 (205)

Cubes of 101 to 115 : This one will help you when the TIME is given for 3 years i.e., (A) = (1+r/100)3 Remember in cubes of 101 to 115 Continue Reading »

Percent is derived from a phrase in latin “per centum” which means per hundred. It is a ratio with base (denominator) 100. It evolved as a concept so that there Continue Reading »

Find the LCM of 12, 18? Step 1: pick the highest of the given numbers of whom we have to find the LCM. In the above example question, pick 18 Continue Reading »

To check addition is correct : Add up the single digits of each individual number in the sum, until you are left with a single digit. -Add these single digits together Continue Reading »

Multiply any large number by 12 mentally in seconds To multiply any number by 12 just double last digit and thereafter double each digit and add it to its neighbour Continue Reading »

ALGOL –Algorithm language ALU – Arithmetic Logic Unit AMD – Advanced Micro Devices ANSI- American National Standards Institute APCI- Application Layer Protocol Control Information ASCII – American Standard Code for Continue Reading »

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Formulas of Number Series 1 + 2 + 3 + 4 + 5 + … + n = n(n + 1)/2 (12 + 22 + 32 + ….. + n2) Continue Reading »