Arithmetic Mean and Range

Q.

Of the $5675$ people in a village $5448$ are literate. What is the percentage of literacy in the village?

Q. How many whole numbers are there between $35$ and $65$

Q.

After nearly 5-6 km, Jack could now see the city vaguely. He was so particular about time that he used to note down the distance and the time he took to go to office every day. He had a picture of one of those notes on his tablet. Now using the data from the picture, find out how many minutes will Jack roughly take to reach Cottage city if it is still 4 km away?

1. Nearly 45 minutes

2. Nearly 60 minutes

3. Nearly 55 minutes

4. Nearly 50 minutes

Q. The average goals scored by Messi in a season of 36 matches is 1.25. What is the total number of goals scored by him in the entire season?

Q. The double bar graph represents the marks scored by the students in two consecutive academic years. What is the percentage increase in Maths and Hindi over the two years?

1. 100%, 100%
2. 100%, 50%
3. 50%, 100%
4. 100%, 0%

Q. What is the difference between the highest and lowest observation termed as?

1. Mean
2. Range
3. Frequency
4. Mode

Q. The average monthly income of X and Y is Rs 5050. The average monthly income of Y and Z is Rs 6250 and the average monthly income of X and Z is Rs 5200. The monthly income of X is

1. Rs 4050
2. Rs 3500
3. Rs 4000
4. Rs 5000

Q.

Building something that wasn’t even discovered then would be surely a time taking job. That hardware store owner agreed to lend Jack a decent room at the roof of his house in return of teaching his son Jacob mathematics.

Next evening, Jack started the topic- “Methods to find central tendency.” He taught Jacob arithmetic mean. When the tuition was over, Jacob said- “I think arithmetic mean is the only method to measure the central tendency of a set of observations.” Say true or false.

1. True

2. False

Q.

What is the range for the following data set?

50 50 50 50 50

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Q. (1) Dinkoo was a scheming kid.
(A) He did not like that all his cousins were loved by everyone in the family more than he was.
(B) He especially hated Minkoo.
(C) One day, Minkoo played a really smart trick on Dinkoo and made him look like a fool.
(D) This was because among his cousins, Minkoo was the smartest.
(6) This upset Dinkoo so much that he decided to make Minkoo pay for it.

1. BADC
2. ABCD
3. ACDB
4. ABDC

Q. On comparing the samples using measures of center and variation, range of sample 1 is sample 2.

Sample 1: 4, 3, 9, 8, 7

Sample 2: 7, 8, 4, 3, 5

1. >
2. <
3. =

Q. The expenditure in schools over 4 years is given. What is the average amount of tax per year that the schools had to pay during the given period?

1. 73 million dollars
2. 93 million dollars
3. 80 million dollars
4. 92.6 million dollars

Q. $\begin{array}{ccc}17& \left(11\right)& 36\\ 21& \left(13\right)& 64\\ 19& (-)& 25\end{array}$

Q. Three years ago the average of A, B, C was 27 years and that of B and C, 5 years ago was 20 years A's present age is

1. 40 years
2. 48 years
3. 30 years
4. 35 years

Q. Find the mean of first six multiples of 4.

Q. What is the difference between the highest and lowest observation termed as?

1. Mean
2. Range
3. Frequency
4. Mode

Q.

From the given data, find the speed of Jack on Monday (in km/hr).

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Q. Average of $8$ numbers is $20$, that of the first two is $15.5$ and that of the next three is $21\frac{1}{3}$, the $6^{th}$ is less than the $7^{th}$ by $4$ and $7$ less than the $8^{th}$. The last number is:

1. $28$
2. $32$
3. $35$
4. $25$

Q. The number of whole numbers between $22$ and $54$ is

1. $32$
2. $30$
3. $31$
4. $42$