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Two trains are moving in the opposite directions at the speed of 48km/h and 60km/h respectively. If the slower train crosses the person sitting in the faster train in 12 seconds then what is the length of the fast train?

The roots of a quadratic equations p and q are reciprocals of the maximum & minimum values respectively that can be assumed by f(x) where f(x) = (x²+3x-6)/(x² - 2x+4) If An= (p^n -q^n) for all natural number n ≥ 1 then find 10(A₁ + A2 + A3 + ...)

A train cover a distance of 12 km in 12 minutes.if it's speed is decreased by 5km/h then the time taken by it to cover the distance of 22km will be

profit and loss

Train A leaves P at noon sharp. Two hours later train B leaves P in the same direction. Train B overtakes Train A at 8pm. Find the average speed of the two trains over this journey if the sum of their average speeds is 70km/hr

The population of country A decreased by p% and the population of country B dec... 

Daily streak reduced to reduced to only 5, please fix this issue.

my streak reduced to 12 from 30

Let ABCD EF be a regular hexagon what is the ratio of area of triangle Ace to that of hexagon ABCDEF

how to get analysis of each question after attempting mock in cracku app