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Ferromagnetic Substances are those substance, which when placed in a magnetic field, are strongly magnetized in the direction of field.
A lad was asked his age by his friend. The lad said “The number you get when you subtract 25 times my age from twice the square of my age wi...
The ratio of Rama’s to Shyama’s age is 1 : 2 and the sum of their age 81 years. What will be the ratio of their ages after 7 years?
The ratio of the ages of A and B is 3:5. After 5 years, the ratio will be 7:11. Find the present age of B.
A is as much older than V as he is younger than K. In 4 years from now, the ratio of the ages of V and K will be 5:9. Also, in 6 years, A's age will be ...
The ratio of the present ages of Ginni and Binni is 12:5 respectively. Ginni is ‘n’ years older than Binni. If after 6 years, the ratio of the ages ...
Six years ago, the age ratio of A to B was 5:6. In nine years, their age ratio will become 8:9. Determine the difference between their current ages.
The difference between the compound interest and simple interest on a certain sum for 2 years at 12% per annum is 144. Find the principal amount.
The sum of the present ages of two cousins is 54 years. Eleven years ago, the older one was thrice as old as the younger one. What is the present age of...
A certain sum of money becomes 4 times of itself in 15 years at simple interest. In how many years does it become double of itself at the same rate of s...
