RRB Group-D Model Paper 12 with answers for online practice

The pattern followed is,
25, 36, 49, 64 and 81 are squares of 5, 6, 7, 8 and 9 respectively.
The next number should be square of 10, which is 100.
25 36 49 64 81 100
$\left(5^2\right)\left(6^2\right)\left(7^2\right)\left(8^2\right)\left(9^2\right)\left({10}^2\right)$
Hence, “100” is the correct answer.