I'm not sure if this is correct,
but, I got:
130cm x 100cm ?
13,000cm ?
x*(1.035) + (4,200-x)*(1.045) = 4,374.00
1.035x + 4,389.00 -1.045x = 4,374.00
15.00 = .01x
x = 1,500 so x (1,500) invested at 3.5% and
(4,200 - 1,500) (or 2,700) invested at 4.5%
There would be a 1 out of 34 chance that you will pick up the 8 of spades ♠️ but I'm not sure
