Skip to main content

Quantative Aptitude - Number series

      There are a number of points to remember while solving  Number Series

  • Different ways of solving no. series
  1. +1,+2,+3,+4
  2. -1,-2,-3,-4
  3. +1,-1,+1,-1
  4. Perfect square series - This type of series is based on square of a number which is in same order and one square number is missing in that series.                                                                    Example- 441,484,529,576,.?..                                                                                                        Answer-441= 21², 484= 22², 529= 23², 576= 24², 625= 25²
  5. Perfect cube series - This type of series is based on cube of a number which is in same order and one cube no. is missing in that given series.                                                                             Example- 1331,1728,2197,..?..                                                                                                       Answer-11³,12³, 13³, 14³
  6. Geometric series - This type of series is based on ascending and descending order of numbers and each successive number is obtain by multiplying or dividing the previous number with a fixed number.                                                                                                                                    Example- 5,45,405,3645,..?..                                                                                                           Answer- 5×9 = 45, 45×9 = 405, 405×9 = 3645, 3645×9 = 32805.
  7. Two Stage Type Series - A two tier Arithmetic series is one in which the differences of successive numbers themselves form an arithmetic series.
  8. Mixed Series - This type of series are more than one different order are given in a series which arranged in alternatively in a single series or created according to any non-conventional rule.    Example- 11,24,50,102,206,..?..                                                                                                      Answer:  11×2=22+2=24                                                                                                                                24×2=48+2=50                                                                                                                                50×2=100+2=102                                                                                                                          102×2=204+2=206                                                                                                                          206×2=412+2=414

Comments

Post a Comment

Popular posts from this blog

Reasoning: Alphabet Test and Miscellaneous Series

Position of Alphabets A-   A- One brand B-   Bi- ttu D-    For -D F-   F- ix G-  G- iven H-   H- eight K-   K- elvin M-   M- 13  hero N-    14 th November P-    Pre- sixteen T-    T- 20 E-5 J-10 O-15 T-20 Y-25 C-3 F-6 I-9 L-12 O-15 R-18 U-21 X-24 G-7 L-7+5=12 Q-12+5=17 V-17+5=22 I-9 S-19 C-3 M-13 W-23
Post a Comment
Read more

Simple Interest

Simple interest formula is one of the methods of calculating the interest on a certain amount. First, it is important to recall the concept of interest and ways to calculate it. When you borrow money from a bank, there is an extra amount to be along with the amount you borrowed. That extra money that you pay is called interest. Some money lenders and financial institutions also charge this interest for the money borrowed. There are two types of interest levied upon: Simple Interest, and Compound Interest It should be noted that the simple interest is paid at the end of a specific time period and is always a fixed amount that the borrower has to pay. The   simple interest   is calculated using a formula which is described below along with an example question. Formula for Simple Interest Simple interest is calculated by multiplying the interest rate by the principal amount and the time period which is generally in years. The S.I. formula is given as: Simple Interest (SI) = P × T × R ⁄ 10
Post a Comment
Read more