 
<translate> E nwere 21 * 2 = 42 anụ ọhịa bea. Ya mere, ngụkọta nke 21 + 42 = 63 anụmanụ. N'ihi ya, azịza ya bụ 63. <eng> There are 21 * 2 = 42 polar bears. So the total 21 + 42 = 63 total animals.
Thus, the answer is 63. 