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Let the speed one train be x m/s and the speed of the second train be y m/s. Length of the first train = Speed × Time = 24x Length of second train = Speed × Time = 14y So, {(24x + 14y)/(x+y)} = 20 ⇒ 24x + 14y = 20x + 20y ⇒ 4x = 6y Therefore, x:y = 3:2
The product of two positive numbers is 192. If one of the numbers is twice the other, then find the difference between the given two numbers.
If (3/4)th of a number is subtracted from (5/6)th of that number, then the resultant will be (2/6). Find the number.
In a company, there are men, women, and boys working. The total daily payment to all workers is Rs. 6,390. The number of men is 20% more than the number...
What is the standard deviation of a dataset if its variance is 17.64?
If {p2 + (2p2/5)} = 14p , p ≠ 0, then find the value of {p2 + (10/p) - 1}.
A certain number represents 31.25% of another number. When 150 is added to the smaller number, it becomes 50% of the larger numbe...
Find the number of zeroes in the product of 20 ×21× 22× ...
Determine the number of trailing zeros in the product of the following numbers:
11 × 22 × 33 × … × 22
A and B are positive integers. If A + B + AB = 65, then what is the difference between A and B (A, B ≤ 15)?
