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Test: Data Handling- 1 - Class 8 MCQ


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10 Questions MCQ Test Mental Mathematics for Class 8 - Test: Data Handling- 1

Test: Data Handling- 1 for Class 8 2024 is part of Mental Mathematics for Class 8 preparation. The Test: Data Handling- 1 questions and answers have been prepared according to the Class 8 exam syllabus.The Test: Data Handling- 1 MCQs are made for Class 8 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Data Handling- 1 below.
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Test: Data Handling- 1 - Question 1

The heights of 5 boys in a group are 152 cm, 170 cm, 156 cm, 164 cm and 158 cm. Find their mean height.

Detailed Solution for Test: Data Handling- 1 - Question 1
  • To find the mean height, add all the heights together.
  • The heights are: 152 cm, 170 cm, 156 cm, 164 cm, and 158 cm.
  • Total height = 152 + 170 + 156 + 164 + 158 = 800 cm.
  • Now, divide the total height by the number of boys: 800 cm ÷ 5 = 160 cm.
  • The mean height of the boys is 160 cm, which corresponds to option 3.
Test: Data Handling- 1 - Question 2

Find the mean of the first six prime numbers.

Detailed Solution for Test: Data Handling- 1 - Question 2

To find the mean of the first six prime numbers, follow these steps:

- The first six prime numbers are 2, 3, 5, 7, 11, and 13.
- Add these numbers together: 2 + 3 + 5 + 7 + 11 + 13 = 41.
- Divide the sum by the total count of numbers (6) to get the mean: 41 / 6 = 6.83.

Therefore, the mean of the first six prime numbers is 6.83, which corresponds to option D.

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Test: Data Handling- 1 - Question 3

The mean of five numbers is 27. If one of the numbers is excluded, the mean becomes 25. Determine the excluded number.

Test: Data Handling- 1 - Question 4

Find the median of 1.2, 1.8, 2.3, 2.7, 3.1, 3.7, 4.0 and 4.5.

Test: Data Handling- 1 - Question 5

The weights of eight students are 32 kg, 25 kg, 30 kg, 25 kg 26 kg, 26 kg, 25 kg and 26 kg. Find their modal weight

Test: Data Handling- 1 - Question 6

The graph shows the number of students from different cities who passed and that who failed in an entrance exam.

What is the ratio of the number of students passing in the entrance exam from city B to those passing from city E?

Test: Data Handling- 1 - Question 7

From 1 to 50, find the probability of getting a multiple of 6.

Test: Data Handling- 1 - Question 8

In a family of two children. Find the probability of at least one girl child.

Test: Data Handling- 1 - Question 9

Two dice are thrown simultaneously. Find the probability of getting an even number as the sum.

Test: Data Handling- 1 - Question 10

A class has 40 students, 25 boys, and 15 girls. A student of the class is selected at random as the monitor. Find the probability of selecting a girl student as the monitor.

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