- A9
- B11
- C \begin{equation} 11 \frac{1}{9} \end{equation}
- D\begin{equation} 11 \frac{2}{9} \end{equation}
Average - Quiz
- A19 years 11months
- B20 years 11 months
- C21 years 11 months
- D22years 11 months
- A49.6
- B39.8
- C45.8
- D37.9
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Quiz Analytics
Average - Quiz
Guest User
Time Taken: Questions: Answered: Not Answered:
Correct Answer:
Wrong Answer:
Percentage: %
- A. 9
- B. 11
- C. \begin{equation} 11 \frac{1}{9} \end{equation}
- D. \begin{equation} 11 \frac{2}{9} \end{equation}
Remarks:
Explanation: \begin{array}{l}
=\frac{2+3+5+7+11+13+17+19+23}{9} \\
=\frac{100}{9} \\
=11 \frac{1}{9}
\end{array}
- A. 100
- B. 117
- C. 124
- D. 104
Remarks:
Explanation:
To find the total money spent by the group of nine people at the hotel,
given that eight of them spent Rs.12 each on their meals and the ninth person spent Rs.8 more than the average expenditure of all nine people,
we can first determine the average expenditure of the group.
Let the average expenditure of all nine be represented by x.
Then, the total expenditure of the eight people who spent Rs.12 each can be represented as 12*8 = 96.
The ninth person's expenditure can be represented as x+8.
The total expenditure of the group can be represented as the sum of the expenditure of each person, or 9x.
We can set up the equation 9x = 96 + (x+8) to represent this situation.
Solving for x yields x = 13, so the average expenditure of the group is Rs.13.
The total money spent by the group is then equal to 9x = Rs.(9*13) = Rs.117.
- A. 80
- B. 94
- C. 98
- D. 68
Remarks:
Explanation:
The total marks obtained by Sohan in six subjects is 444,
and the total marks obtained by him in five subjects excluding science is 350.
Therefore, the marks obtained by Sohan in science are 444 - 350 = 94.
- A. 55
- B. 58
- C. 62
- D. 65
Remarks:
Explanation:
The sum of the ages of the two teachers is 62 years.
To find this, we can use the following steps:
The total age of the 30 boys is 450 years.
The total age of the 30 boys and the two teachers is 512 years.
Therefore, the sum of the ages of the two teachers is 512 - 450 = 62 years.
- A. 32
- B. 34
- C. 40
- D. 42
Remarks:
Explanation:
The total age of A and B four years ago: 40 years
The present total age of A and B: 48 years
The present total age of A, B, and C: 75 years
The present age of C: 75 - 48 = 27 years
The age of C after 7 years: 27 + 7 = 34 years.
- A. 4000
- B. 5000
- C. 3000
- D. 2000
Remarks:
Explanation:
Rakesh's monthly income is Rs. 4000. To find this, we can use the following steps:
The total income of Rakesh and Suresh is 10100.
The total income of Suresh and Ramesh is 12500.
The total income of Rakesh and Ramesh is 10400.
Adding these three equations gives us 2(P + Q + R) = 33000 or P + Q + R = 16500.
Subtracting the equation for Suresh and Ramesh from this equation gives us P = 4000.
Therefore, Rakesh's monthly income is Rs. 4000.
- A. 20.4
- B. 18.34
- C. 17.23
- D. 15.87
Remarks:
Explanation:
The combined average of the two groups is 20.44.
To find this, we can use the following steps:
The number of quantities in group A is 10, and the number of quantities in group B is 8.
The individual average of group A is 24, and the individual average of group B is 16.
The combined total of the two groups is 10 * 24 + 8 * 16 = 240 + 128 = 368.
The total number of quantities in the two groups is 10 + 8 = 18.
Therefore, the combined average of the two groups is 368 / 18 = 20.44.
- A. 156
- B. 165
- C. 561
- D. 651
Remarks:
Explanation:
Output:
Total cost of 5 tables=1227×5=6135
Total cost of 13 chairs=8280-6135=2145
Average cost of chair=2145÷13=165
- A. 19 years 11months
- B. 20 years 11 months
- C. 21 years 11 months
- D. 22years 11 months
Remarks:
Explanation:
Solution
Total age increased=(2×11)months= 22 months=1 year 10 months
sum of ages of two new players =(18years+20years+1year 10 months)
=39 years 10 months
Required average=39 years 10 months/2=19 years 11 months
- A. 49.6
- B. 39.8
- C. 45.8
- D. 37.9
Remarks:
Explanation:
Given:
There are five prime numbers between 30 and 50
They are 31,37,41,43,47
Required average=[31+37+41+43+47]/5
=199/5=39.8