self Maths Puzzle

What day of the week was 1 february 1901?

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self Other Question

the present population of a country estimated to be 10 crores is expected to increase to 13.31crores during the next three years, the uniform rate of growth is? a motor boat whose speed is 15km/hr in still water goes 30km downstream nd comes back in a total of 4hrs 30mins.the speed of d stream(in km/hr) is (a)4 (b)5 (c)6 (d)10