the average of 30 numbers is 15 the average of the first 18 numbers is

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811 0

Q:
The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is

1
56
2
52
3
60
4
50

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Answer : 4. "50"
Explanation :

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Maths Average Questions

Q:
The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is

Answer : 4. "50"
Explanation :

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Q: The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is

Answer : 4. "50" Explanation :

Similar Questions

Q. If Suresh borrows Rs. 36000 from Mahesh at rate of interest 6% S.I, at the end of four years how much interest Suresh has to pay along with principal amount?

Q. A train moving at speed of 90 km/hr crosses a pole in 7 seconds. Find the length of the train.

Q. A clock only with only dots marking 3, 6, 9 and 12 positions has been kept upside down in front of mirror. A person reads the time in the reflection of the clock as 4.50. What is the actual time?

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Are you sure

Report Error

the-average-of-30-numbers-is-15-the-average-of-the-first-18-numbers-is

Q:
The average of 30 numbers is 15. The average of the first 18 numbers is 10 and that of the next 11 numbers is 20. The last number is

Answer : 4. "50"
Explanation :

Q.
If Suresh borrows Rs. 36000 from Mahesh at rate of interest 6% S.I, at the end of four years how much interest Suresh has to pay along with principal amount?

Q.
A train moving at speed of 90 km/hr crosses a pole in 7 seconds. Find the length of the train.

Q.
A clock only with only dots marking 3, 6, 9 and 12 positions has been kept upside down in front of mirror. A person reads the time in the reflection of the clock as 4.50. What is the actual time?