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Find the digit in 469th place from right of 90^468

the rightmost non-zero digit of the number 20^2520?

mahendra.org.

find minimal vvalue of the expression a^6+b^6 if a^2+b^2=1?( if ur answer is 1/4 tell me how 3a^2b^2 becomes 3/4)

A can do a piece of work in 10 days while B can do it in 15 days. They begin together but 5 days before the completion of the work , B leaves off. find the total number of days for the work to be completed?

how to approximate cube root of any number

The sum of all natural numbers less than 101 which are co-prime to 2, 3 and 5??

para jumble

Suppose overall cut off is some X, if I qualified in all the sections but my overall score is bellow X then, am I eligible for further stages?

Suppose overall cut off is some X, if I qualified in all the sections but my overall score is bellow X then, am I eligible for further stages?