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Question 1
In a class average weight of 30 students is 30 kg. some new students joined them and average weight of whole class became 38 kg. If average weight of new students is 43 kg then what is the number of new students?
Question 2
Average of 10 consecutive odd numbers is 52. If 5 more odd numbers are added the average of consecutive 15 odd numbers is:
Question 3
The average of Christiano Ronaldo after playing 100 matches was 1.5 goals per match. If he scored 36 goals in the next 50 matches then what is the change in his average?
Question 4
An NGO has raised 88% of the amount it needs for a new building by receiving an average donation of Rs. 640 from the people already solicited. The people already solicited represent 55% of the people, the NGO will ask for donations. If the NGO has to raise exactly the amount needed for the new building, what should be the average donation from the remaining people to be solicited?
Question 5
If TRP of a channel on a general day is 23.6 in an area of population 17500. If on the day of match between India and Pakistan the TRP increases by 90%. In a certain week India Pakistan match was held for three days. Then find the average number of viewers on that week.
Question 6
The average of 11 consecutive natural numbers is ‘R’. By how much will the average increase if the next four natural numbers are also added?
Question 7
Directions: Answer the following questions by selecting the most appropriate option.
A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85 or better overall. What is the minimum grade he must get on the last test in order to achieve that average?
A student has gotten the following grades on his tests: 87, 95, 76, and 88. He wants an 85 or better overall. What is the minimum grade he must get on the last test in order to achieve that average?
Question 8
Three Science classes A, B and C take a Life Science test. The average score of class A is 83. The average score of class B is 76. The average score of class C is 85. The average score of class A and B is 79 and average score of class B and C is 81. Then the average score of classes A, B and C is
Question 9
The average of 9 integers is found to be 11. But after the calculation, it was detected that by mistake, the integer 23 was copied as 32 while calculating the average. After the due correction is made, the new average will be
Question 10
The mean of five numbers is 27. If one number is excluded their mean is 25, then excluded number is?
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Nov 10SSC & Railway
