21 : 19
22 : 9
11 : 9
11 : 18
The sum of two numbers is 45. Their difference is 1/9 of their sum. Their LCM is = ?
The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above condition is
The sum of two numbers is 684 and their HCF is 57. Find all possible pairs of such numbers.
The sum of two numbers is equal to the thrice of their difference. What will be the ratio between them?
The ten’s digit of a 2 digit number is greater than the units digit by 4. If we subtract 36 from the number the new number obtained is a number formed by interchange of the digits. Find the number.
The third proportional to 9 and 12 is ?
The third propotional to 0.8 and 0.2 is ?
The top of a 15 metre high tower makes an angle of elevation of 60° with the bottom of an electric pole and angle of elevation of 30° with the top of the pole. What is the height of electric pole ?
The total age of A and B is 12 years more than the total age of B and C. C is how many years younger than A ?
The total age of a mother and her daughter is 60 years. The difference between their ages is 30 years. Find out the age of the mother.
