The document CBSE Class 3 Maths Worksheet- Smart Charts Class 3 Notes | EduRev is a part of the Class 3 Course Mathematics for Class 3: NCERT.

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**Q.1. The number of members in 20 families are given below:4, 6, 5, 5, 4, 6, 3, 3, 5, 5, 3, 5, 4, 4, 6, 7, 3, 5, 5, 7Prepare a frequency distribution of data.Ans.**

Number of members | 3 | 4 | 5 | 6 | 7 |

Frequency | 4 | 4 | 7 | 3 | 2 |

**Q.2. The number of students in 7 different classes is given below. Represent this data on the bar graph.**

Class | 6^{th} | 7^{th} | 8^{th} | 9^{th} | 10^{th} | 11^{th} | 12^{th} |

Number of Students | 130 | 120 | 135 | 130 | 150 | 80 | 75 |

**Ans. **

**Q.3. The following data gives the number of children in 40 families:1, 2, 6, 5, 1, 5, 1, 3, 2, 6, 2, 3, 4, 2, 0, 4, 4, 3, 2, 2, 0, 0, 1, 2, 2, 4, 3, 2, 1, 0, 5, 1, 2, 4, 3, 4, 1, 6, 2, 2Represent it in the form of a frequency distribution.Ans.**

Wages (in Dollars) | 1 | 2 | 3 | 4 | 5 | 6 | |

Frequency | 4 | 7 | 12 | 5 | 6 | 3 | 3 |

**Q.4. The number of trees planted by Eco-club of a school in different years is given below.**

Year | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |

Number of Trees to be Planted | 150 | 220 | 350 | 400 | 300 | 380 |

**Ans. **

**Q.5. The electricity bills (in dollars) of 25 houses of a certain locality for a month are given below:324, 700, 617, 400, 356, 365, 435, 506, 548, 736, 780, 378, 570, 685, 312, 630, 584, 674, 754, 776, 596, 745, 565, 763, 472Arrange the above data in increasing order and form a frequency table using equal class intervals, starting from 300-400, where 400 is not included.Ans.**

Amount of the bill (in Dollars) | 300-400 | 400-500 | 500-600 | 600-700 | 700-800 |

Frequency | 5 | 3 | 6 | 4 | 7 |

**Q.6. The following table shows the favorite sports of 300 students of a school.**

| Cricket | Football | Hockey | Badminton | Swimming | Tennis |

| 80 | 40 | 20 | 30 | 45 | 75 |

**Ans.**

**Q.7. The weekly pocket expenses (in dollars) of 30 students of a class are given below:62, 80, 110, 75, 84, 73, 60, 62, 100, 87, 78, 94, 117, 86, 65, 68, 90, 80, 118, 72, 95, 72, 103, 96, 64, 94, 87, 85, 105, 115Construct a frequency table with class intervals 60-70 (where 70 is not included) 70-80, 80-90 etc.Ans.**

Expenses (in Dollars) | 60-70 | 70-80 | 80-90 | 90-100 | 100-110 | 110-120 |

Frequency | 6 | 5 | 7 | 5 | 3 | 4 |

**Q.8. The following are the marks scored by Aaron out of 50 in different subjects in an exam. Represent this information on a bar graph**

Subjects | English | Urdu | Math | Science | History |

Marks Obtained | 40 | 30 | 50 | 45 | 25 |

**Represent this information on a bar graph.Ans.**

**Q.9. The heights (in cm) of 22 students were recorded as under:125, 132, 138, 144, 142, 136, 134, 125, 135, 130, 126, 132, 135, 142, 143, 128, 126, 136, 135, 130, 130, 133Prepare a frequency distribution table, taking equal class intervals and starting from 125-130, where 130 is not included.Ans.**

Height (in cm) | 125-130 | 130-135 | 135-140 | 140-145 |

Frequency | 5 | 7 | 6 | 4 |

**Q.10. The following data shows the birth rate per thousand of different countries during a certain year. Draw a bar graph.**

Country | India | Pakistan | China | Sri Lanka | Russia |

Birth Rate | 24 | 26 | 30 | 20 | 18 |

**Read the questions carefully given in the worksheet on bar graph and represent the data in the column graph. The graph are shown below to check the exact the bar graph.Ans.**

**Q.11. A dice was thrown 30 times and the following outcomes were noted:2, 1, 2, 4, 6, 1, 2, 3, 6, 5, 4, 4, 3, 1, 1, 3, 1, 1, 5, 6, 6, 2, 2, 3, 4, 2, 5, 5, 6, 4Prepare a frequency table.Ans.**

Outcome | 1 | 2 | 3 | 4 | 5 | 6 |

Frequency | 6 | 6 | 4 | 5 | 4 | 5 |

**Q.12. The number of bed-sheets manufactured by a factory during five consecutive weeks is given below.**

Week | First | Second | Third | Fourth | Fifth |

Number of Bed-sheets | 600 | 850 | 700 | 300 | 900 |

**Ans.**

**Q.13. The marks obtained by 40 students of a class in an examination are given below:8, 47, 22, 31, 17, 13, 38, 26, 3, 34, 29, 11, 22, 7, 15, 24, 38, 31, 21, 35, 42, 24, 45, 23, 21, 27, 29, 49, 25, 48, 21, 15, 18, 27, 19, 45, 14, 34, 37, 34Prepare a frequency distribution table with equal class intervals, starting from 0-10 (where 10 is not included).Ans.**

Marks | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |

Frequency | 3 | 8 | 14 | 9 | 6 |

**Q.14. The number of absentees in class VIII was recorded in a particular week. Represent this data on the bar graph**

Days | Mon. | Tues. | Wed. | Thurs. | Fri. | Sat. |

Number of Absentees | 130 | 120 | 135 | 130 | 150 | 80 |

**(a) On which day the maximum and minimum students were absent?(b) How many students were absent on Wednesday and Friday?(c) On which days the same number of students was absent?Ans.**

**Q.15. The weekly wages (in dollars) of 28 workers of a factory are given below:****668, 610, 642, 658, 668, 620, 719, 720, 700, 690, 710, 642, 672, 654, 692, 706, 718, 702, 704, 678, 615, 640, 680, 716, 705, 615, 636, 656Construct a frequency table with equal class intervals, taking the first of the class intervals as 610-630, where 630 is not included.Ans. **

Wages (in Dollars) | 610-630 | 630-650 | 650-670 | 670-690 | 690-710 | 710-730 |

Frequency | 4 | 4 | 5 | 3 | 7 | 5 |

**Q.16. The population of a particular state in different years is given below.**

Year | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |

Population in Lakhs | 35 | 40 | 50 | 65 | 90 | 105 |

**Represent the above data using the bar graph.Ans.**

**Q.17. The daily earnings (in dollars) of 24 stores in a market was recorded as under:715, 650, 685, 550, 573, 530, 610, 525, 742, 680, 736, 524, 500, 585, 723, 545, 532, 560, 580, 545, 625, 630, 645, 700Prepare a frequency table taking equal class sizes. One such class is 500-550, where 550 is not Included.Ans.**

Daily earnings (in Dollars) | 500-550 | 550-600 | 600-650 | 650-700 | 700-750 |

Frequency | 7 | 5 | 4 | 3 | 5 |

**Q.18. The following data represents the sale of refrigerator sets in a showroom in first 6 months of the year.**

Months | Jan | Feb | March | April | May | June |

No. of Refrigerators Sold | 20 | 25 | 15 | 40 | 35 | 30 |

**Ans.**

**Q.19. The average monthly attendance of a class is given.**

Month | July | Aug | Sep | Oct | Nov | Dec | Jan | Feb |

Attendance | 45 | 46 | 30 | 50 | 38 | 20 | 36 | 32 |

**Draw the bar graph of the data given.In which month the average attendance is minimum or maximum?In which month the average attendance was less than 40?Find the difference between the maximum and minimum average attendance?Ans.**

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