Math Chapter Wise question with answer

Q01 The greatest positive integer k, for which 49k + 1 is a factor of the sum 49125 +49124 +.... +492 +1 is: English · EMRS PGT-2023 Q02 If n is a positive integer and n k k C = C, then 2 n 3 k k =1 k–1 C k C ∑ ∑ equal: English · EMRS TGT-2023 Q03 The 5th term from the end in the expansion of () 3n 1 x - x in increasing power of x, is (n is a positive integer)- English · Rajasthan TGT 2013 Q04 If three consecutive coefficients in the binomial expansion of (x + 1)n in power of x are in the ratio 2:15: 70, th... English · EMRS PGT-2023 Q05 The coefficient of x7 in the expansion (1+x)10 + x(1+x)9 + x2 (1+x)8 +...+x10 is: English · EMRS PGT-2023 Q06 The coefficient of xn in the expansion of (1+x) (1–x)n is: English · EMRS PGT-2023