Question
Which of the following is the correct formula for moment
of inertia?Solution
The correct answer is A
The average weight of a family of 7 members is 68 kg. If the eldest member dies, the average weight of the family decreases by 2 kg. Find the weight of ...
- The average of the first three numbers is twice the average of the next six numbers. If the average of all nine numbers is 20, then find the sum of the las...
The average price of 10 stickers is Rs.12 while the average price of 8 of these stickers is Rs.11.75. Of the remaining two stickers, if the price of one...
The average age of A and B is 22 years. If A is to be replaced by C, the average would be 20 years. The average age of C and A is 23 years. Find the age...
- There are three numbers 'u', 'v' and 'w' such that average of 'u' and 'v' is 26, average of 'v' and 'w' is 14 and average of 'u' and 'w' is 20. Find the av...
The average cost of items bought by a shopkeeper is ₹150. He purchases another item for ₹270, and the average increases by ₹10. Find the total cos...
5 positive numbers are written on a piece of paper. Sum of first 3 numbers is 70 and ratio of the 4th and the 5th number is 2:3. If difference between t...
The average age of a class of 25 girls is 20 years. If 7 new girls having average age of 12 years join the class, then the average age of the class beco...
Avg of 8 numbers = 45. One wrong number 56 replaced by 60. Find new avg.
- The average age of P, Q, R and S is 30 years and the average age of P and Q is also 30 years. If S is 8 years older than R, then find the age of R.
