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Let speed of train Y be 'a' km/hr. According to question, => 20(35 + a) × (5/18) = 600 => 700 + 20a = 2160 => 20a = 1460 => a = 73 km/hr
Find the sum of all two-digit numbers that are exactly divisible by 6.
Sum of squares of three consecutive numbers is 1589. Find the sum of first and third number.
The sum of four consecutive counting numbers is 154. Find the smallest number?
What is the remainder when 7³⁵ is divided by 5?
15 15 60 540 8650
...The sum of three consecutive natural numbers each divisible by 5, is 255. The largest among them is:
Find the number that needs to be subtracted from 85 and 55 such that their ratio becomes 6:3.
The sum of the digits of a two-digit number is 9. If 27 is subtracted from the number, its digits switch their places. What is the number?
