Question
The average of 25 numbers is 39.4. The average of the
first 12 numbers is 36.5, and the average of the last 12 numbers is 40.5. Determine the value of the 13th number.Solution
Sum of 25 numbers = 25 X 39.4 = 985 Sum of first 12 numbers = 12 X 36.5 = 438 Sum of last 12 numbers = 12 X 40.5 = 486 Therefore, required number = 985 - 438 - 486 = 61
FIFA headquarter is located in:
The second most abundant element on Earth's crust is:
Brahma Kamal is the state flower of which of these?
When was the National Interim Government of India formed, under Jawaharlal Nehru?
DU PONT Analysis deals with:
Which of the following is the world's second most deepest and longest lake?
The International Crops Research Institute for the Semi-Arid Tropics is headquartered at?
Match the following Important Refineries with their respective States
Refinery States
(i). Koyali Indian Oil Refinery (A) Kerala
(...
What is the distance of James Web telescope, the most powerful space telescope ever launched, from earth?
In which state is the G. B. Pant University of Agriculture located?
Relevant for Exams:
