Current Affairs 1st Class

   Number Series     In the number series, numbers are arranged in a certain pattern. You have to find the missing number.   See the Following Examples:       In the above given patterns numbers are arranged in the gap of. Counting byyou can find the missing number.     Find the missing number. The missing number isbecause the numbers are arranged in the gap of     Find the missing number. The missing number isbecause the numbers are arranged in the gap of.     Find the missing number. The missing number is. The gap isandTo find the second numberis added to the first number. To find the third numberis added to the second number. To find the fourth numberis added to the third number. To find the fifth numberis added to the fourth number.     Find the missing number. The missing number is. To find the second number first number is multiplied by.             Find the missing number. (a) 19                                                     (b) 20 (c) 21                                                     (d) None of these     Answer: (c) Explanation The pattern addsin every step.        Find the missing number. (a) 31                                                     (b) 32 (c) 33                                                     (d) 35     Answer: (d) Explanation The patterns add in every step.          

• Numbers are arranged in a pattern based on the addition, subtraction, multiplication, etc.  

     

• Patterns are arrangements in particular style.
• Patterns can be made up of numbers, sizes, shapes, etc.
• In the number series numbers are arranged in different patterns

   Introduction     In this chapter, you will learn various patterns based on shape size and number.      Concept of Patterns   Patterns are particular arrangements. For example, let's see the following patterns of numbers:  

1

2

3

4

5

6

Ascending Order Pattern                                                                                        or

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5

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3

2

1

Descending Order Pattern     Similarly other patterns are made in different forms. See another following patterns:                    Patterns            What will come in the blank circle? (a) 5                                                       (b) 3 (c) 6                                                       (d) 7     Answer: (c) Explanation The pattern addsin every step.        What will come in place of question mark? more...

     Square     Let's see the squares given below:   Square has 4 equal sides and 4 angles.            Which one of the following is a square? (a)                                 (b) (c)                     (d)     Answer: (b)        How many lines are required to make 2 square? (a) 4                                                       (b) 8 (c) 12                                                     (d) 3     Answer: (b)           Rhombus Let's see the pictures of rhombus given below.         In Rhombus   

• Four sides are equal.
• Opposite angles are equal.
• Opposite sides are parallel.    

         Identify rhombus out of the given options. (a)                                                 (b) (c)                                  (d)     Answer: (b)        Fromequal straight lines, how many rhombus can be made? (a) 1                                                       (b) 2 (c) 4     (d) 5     Answer: (a)        

• You can make geometrical shapes using straight line or curve lines.
• Map or design of the building is created using geometrical shapes.      

     

• Lines have almost no width.
• Two lines make an angle.
• Square has four equal sides.
• Rectangle has equal opposite sides.
• Rhombus has four equal sides and opposite equal angles.
• Square is a rhombus.
• Quadrilateral hasequal or unequal sides. Squares, rectangles and rhombus are quadrilaterals.

  Rectangle       Let's see the following rectangles:   Thus it is clear that a rectangle has equal angles and equal opposite sides.             Which one of the following is a rectangle? (a)                               (b) (c)                        (d)     Answer: (d)        Choose the option which is not a rectangle. (a)                   (b)                       (c)                         (d)   Answer: (a)

   Quadrilateral       See the quadrilaterals given below:   Thus it is clear that a quadrilateral has four sides whether they are equal or not.             Which one of the following is a quadrilateral? (a)                                                 (b) (c)                                         (d)     Answer: (d)        Choose the option which is not a quadrilateral? (a)                                   (b)  (c)                                    (d)     Answer: (d)

   Triangle     A triangle has three sides and three angles. Let's see the following figures: The above given figures have three sides and three angles. Therefore, they are triangles.               Which one of the following is a triangle? (a)                                      (b) (c)                                        (d)   Answer: (a)         How many lines are required to make a triangle? (a) 4                                                       (b) 7 (c) 3                                                       (d) 5     Answer: (c)

 Angles     See the following figure: It is an angle.              Which one of the following is not an angle? (a)                      (b) (c)                                             (d)     Answer: (d)         Which one of the following options has two angles? (a)                                         (b)   (c)                                       (d)     Answer: (a)

   Line   A line is a collection of points. See the Picture of Lines Given Below 1. Straight and standing line (Vertical)                 2. Straight and sleeping lines (Horizontal)                   3. Straight and slanting lines 4. Curved lines          Which one of the following options has curve lines? (a)                                   (b)   (c)                   (d)     Answer: (b)        Choose the straight lines that are slanting. (a)                                  (b)                  (c)                        (d)   Answer: (d)    

  Introduction     The kilometer, metre, centimeter, inches and foot are the units of distance and length. While kilometer andmetre are used for long and average distances, and length, centimeter, inches and foot are used to measure short distances.      Length and Breadth Length is longer dimension of an object while breadth is the dimension from side to side. Let's see the picture given below:       Measurement In the above mentioned picture, the longer dimension is AB and CD. Hence AB and CD are lengths. While dimension from side to side are AC and BD and it is called breadth.     Now Remember, kilometer =metre metre = centimeter andfoot =inches. Now ifkilometer =metre thenkilometer = Twometers. Kilometer = Threemeters and the process goes on.     Similarly, metre =centimeters. metre = twocentimeters meters = threecentimeters and the process goes on. Againfoot =inches. foot = twoinches =inches. foot = threeinches = inches.     Remember again   Short forms: Kilometer            =         Metre                   =          Centimeter        =                         How many kilometers are there in two 1000 meters? (a) 4                                                       (b) 2 (c) 3                                                       (d) 5     Answer: (b) Explanation kilometer = onemeters then kilometers = two meters.        Which one of the following is the length in the given picture?     (a) LM                                                   (b) LN (c) MO                                                  (d) NL     Answer: (a)            

• There are 12 inches in 1 foot.
• Generally the length of a football field is 110 meters but it varies from country to country.  

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  Identifying Notes   The information that is required to identify the rupees are written on a paper and is called Notes. In India, 1 rupee, 2 rupees, 5 rupees, 10 rupees, 20 rupees, 50 rupees, 100 rupees, 500 rupees and 1000 rupees Notes are in circulation.   Look at the 1 rupee and 2 rupees notes given below:       1 rupee (One rupee note)                  2 rupees (Two rupee note)   It is clear from the picture given above that denomination or value of notes written on it. Therefore, whenever we identify the note we see the denomination or value written on it.     100 rupees (One hundred rupees note)   500 rupees (Five hundred rupees note)                                                          1000 rupees (One thousand rupees note)     50 rupees (Fifty rupees note)       5 rupees (Five rupees note)              Identify the note given in the picture and pick the correct option. (a) It is a 20 rupees note               (b) It is a 5 rupees note (c) It is a 50 rupees note                (d) It is a 10 rupees note   Answer: (d)            Which one of the following options has similar value of the given Note? (a) 10 notes of 100 rupees           (b) 5 notes of 500 rupees (c) 5 notes of 100 rupees              (d) 5 notes of 50 rupees   Answer: (a) Explanation The given note is of Rs. 1000 which has similar value of 10 notes of Rs. 100.