Maths MCQ Quiz in मल्याळम - Objective Question with Answer for Maths - സൗജന്യ PDF ഡൗൺലോഡ് ചെയ്യുക
Last updated on Mar 13, 2025
Latest Maths MCQ Objective Questions
Top Maths MCQ Objective Questions
Maths Question 1:
In triangles
Answer (Detailed Solution Below)
Maths Question 1 Detailed Solution
The ratio of the areas of similar triangles is the square of the ratio of their corresponding sides. Here, the ratio of
Maths Question 2:
A flagpole casts a shadow of 12 feet. At the same time, a nearby tree that is 8 feet tall casts a shadow of 6 feet. How tall is the flagpole?
Answer (Detailed Solution Below)
Maths Question 2 Detailed Solution
To find the height of the flagpole, we can use the concept of similar triangles. The tree and its shadow form one triangle, and the flagpole and its shadow form another triangle. Since the sun's rays are parallel, these triangles are similar. Therefore, the ratio of the height to the shadow length is the same for both. For the tree, the ratio is
Maths Question 3:
The cosine of angle C in a right triangle is
Answer (Detailed Solution Below)
Maths Question 3 Detailed Solution
The sine of an angle is equal to the cosine of its complementary angle. Therefore,
Maths Question 4:
A factory produces 400 gadgets, and 92% of them pass quality inspection. How many gadgets pass inspection?
Answer (Detailed Solution Below)
Maths Question 4 Detailed Solution
To find out how many gadgets pass inspection, calculate 92% of 400. Convert the percentage to a decimal:
Maths Question 5:
What is the median of the following data set: 5, 11, 15, 18, 22?
Answer (Detailed Solution Below)
Maths Question 5 Detailed Solution
To find the median, we need to arrange the data in ascending order (which it already is) and find the middle value. Since there are 5 numbers, the median is the third number in the sorted list. Thus, the median is 15. Option 1 is incorrect as 11 is the first quartile, not the median. Option 2 is incorrect as 13 does not appear in the data set. Option 4 is incorrect as 18 is the fourth value, not the middle one. Therefore, the correct answer is 15.
Maths Question 6:
In a study, two groups of athletes were tested for their maximum oxygen uptake levels. The data for each group is summarized in the table below.
| Group | Sample Size | Mean (ml/kg/min) | Standard Deviation (ml/kg/min) |
|-------|-------------|------------------|---------------------------------|
| C | 1,800 | 50 | 8.5 |
| D | 1,800 | 50 | 12.3 |
Which of the following statements is true based on the table?
Answer (Detailed Solution Below)
Maths Question 6 Detailed Solution
The correct answer is option 3. The standard deviation is a measure of the spread of data points around the mean. A larger standard deviation indicates that the data points are more spread out. Here, Group D has a standard deviation of 12.3 ml/kg/min, which is larger than the standard deviation of Group C, which is 8.5 ml/kg/min. This means that the oxygen uptake levels in Group D have a larger spread compared to Group C.
Option 1 is incorrect because identical data sets would have identical means and standard deviations, which is not the case here.
Option 2 is incorrect because a larger standard deviation in Group D indicates less consistency, not more.
Option 4 is incorrect because the problem does not provide information about medians, and the means are identical, so we cannot infer anything about the medians.
Maths Question 7:
A list of 60 numbers has a mean of 25 and a median of 30. If all numbers above the median are tripled and all numbers below the median are halved, which statistical measure is altered?
Answer (Detailed Solution Below)
Maths Question 7 Detailed Solution
Tripling all numbers above the median and halving all numbers below the median results in a significant change in the spread of the data. The median remains unchanged as it is the central value of the ordered list. The mean, which depends on the total sum, will change due to the drastic modifications in individual values. The total sum changes as the transformations alter the overall sum of the data. The standard deviation, which measures the spread of the data points from the mean, will definitely increase due to the increased variability in the data. Thus, the standard deviation is altered.
Maths Question 8:
The ratio
Answer (Detailed Solution Below)
Maths Question 8 Detailed Solution
The ratio
Maths Question 9:
For the function
Answer (Detailed Solution Below)
Maths Question 9 Detailed Solution
The given function is
Maths Question 10:
A scientist observes that a certain chemical reaction doubles in concentration every 2 hours. If the initial concentration is
Answer (Detailed Solution Below)
Maths Question 10 Detailed Solution
The concentration doubles every 2 hours. After 8 hours, the concentration will have doubled