What should come in place of the question mark (?) in the following questions ?
$${2^{0.2}} \times 64 \times {8^{1.3}} \times {4^{0.2}} = {8^?}$$
83% of 6242 x 12% of 225 = ?
$$1{1 \over 8} + 1{6 \over 7} + 3{3 \over 5}$$ = ?
? ÷ 25 ÷ 12 = 248.76
$${(73)^3}$$ = ?
What should come in place of question mark (?) in the following number series?
3 4 12 ? 576 27648
4 12 60 420 ? 41580
6 349 565 ? 754 781
1.5 4 20 129 ? 10505
89250 17850 7140 1428 571.2 ?