Others Maths Puzzle

Find the 202nd digit from the right in the product of 4! x 5! x 6!...............71!?

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Others Other Question

Ques: A metro's engine runnin with the speed of 42 km/hr without a compartment attached with. The speed of reduction is
directly proportional to square root of no. of compartments attached to it. I f there are 9 compartments are attached with the
engines the speed of the metro is 24 km/hr. How many maximum compartments can be attached to the metro.
a) 48
b) 36
c) 39
d) 49 Niloy Sen
If f(x) = max (x^2 – 4, x, –1), then what is the minimum value of f(x)?
Add to my
a– 4
b 1
c–1
d0