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Speed of train = 1800/18 = 100 m/sec Let the speed of the man be ‘s’ m/sec Relative speed of the train = (100 – s) m/sec According to the question, (100 – s) = 1800/90 Or, s = 100 – 20 = 80 Therefore, speed of the man = 80 m/sec
When a number is increased by 20% then the number obtained is 36 less than thrice the original number. Find the original number.
The sum of four consecutive even numbers is 108. What is the sum of the squares of these numbers?
Sum of squares of three consecutive numbers is 974. Find the sum of first and third number.
Aman is forming pairs of two natural numbers, A and B, such that their product equals 350. He wants to determine how many such pairs exist where A and B...
If 193 × 199 + x makes the perfect square. Find the value of x
Albela Sells Chocolates in the packs of 6 chocolates, 12 chocolates, 18 chocolates and 24 chocolates etc, but the rate is necessarily uniform. One day ...
Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s fathe...
The sum of the squares of three natural numbers is 342. These numbers are in the ratio of 3:5:2. Determine the difference between the largest and smalle...
