If `500 C_92= 499C_92+nC_91` then x is

If 500C_(92)=499C_(92)+nC_(91) then x is

If (24 , 92) = 24 m + 92 n , then ( m , n) is

If nC_r + nC_(r+1) = (n+1)C_x then x=?

A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90s, 91s, 95s and 92s. If the minimum division in the measuring clock is 1s then the reported mean time should be

The distance between two consecutive longitudes ( 91^@ E and 92^@ E) at the Poles is

If A=26 and TEA = 55 , then SPATTER=? (A) 92 (B) 90 (C ) 91 (D) 95

Protactinium-234 (""_(91)^(234)Pa) decays to ""_(92)^(234)U with the emission of :