Question
A bomb at rest explodes into a large number of tiny
fragments. The total momentum of all the fragments –Solution
In an explosion, an internal impulse acts in order to propel the parts of a system (often a single object) into a variety of directions. After the explosion, the individual parts of the system (that is often a collection of fragments from the original object) have momentum.
- Determine the smallest 5-digit number that is divisible by 16, 28, 32 and 40.
A two-digit number is 5 times the sum of its digits. If 9 is added to the number, the digits get reversed. Find the number.
When the digits of a two-digit number are interchanged, the new number becomes 5 less than 150% of the original number. If the sum of the digits is 10, ...
4096Â Â Â Â Â Â Â Â 2048Â Â Â Â Â 514Â Â Â Â Â 64Â Â Â Â Â Â Â Â Â Â 4
...Two students appeared in an exam and one secured 30 marks more than the other. If marks of the student who got more marks is 65% of the sum of the marks...
The sum of two numbers is 30 whereas the sum of their reciprocals is (5/12). Find the square of the product of the two numbers.
One-fourth of a number is 70. What will 40% of that number?
- 7643529 is divisible by which of the following numbers?
I. 3
II. 11 Four numbers P, Q, R, S satisfy: Q is 25% less than P, Q:R = 9:10, and R:S = 5:8. If the average of P, Q, R, S is 94, find (S – P).
- 25% of 36% of 960 = m + 21.6, find the total of squares of each digit in ‘m’.
