How many times I write digit ‘1’ in first hundred natural numbers?
The sum of a positive number 'A' and its square is 110. Find the value of (A2 - 7A).
Meena has 72 marbles of two colours – green and yellow. If she buys 24 more green marbles, the ratio of green to yellow marbles becomes 5:3. Find the ...
The sum of a positive number 'A' and its square is 156. Find the value of (A2 - 7A).
If the first term is 125 and the common ratio is 3/5, then what will be the fourth term of the geometric progression (G.P)?
- When 40% of a number is added to the number itself, the result is 21 more than the original number. What is the resulting number?
- If 246x179y is divisible by 72, find the value of (x + 2y).
In a school a total of 3,920 candies was distributed among all the students in the school. The candies were distributed in such a way that number of can...
Sum of the three numbers is 180. Ratio of the first number to second number is 4:7 and the ratio of second number to third number is 7:9. Find the secon...
What is the ratio of the sum of the squares of the first 8 natural numbers to the sum of the first 12 odd natural numbers?
