Joke Collection Website - News headlines - The Young Pioneers Brigade made two placards (as shown below). Please work out how many iron plates they used.

The Young Pioneers Brigade made two placards (as shown below). Please work out how many iron plates they used.

The figure in the title is as follows:

?

The iron plate used for the first placard is:

1.6x1.4+.8x.2 = 2.4 (m&; #178; )

The iron plate used for the second placard is:

.9÷ 2x.9x2+.8x.2 = .97 (m&; #178; )

a: the first placard used an iron plate of 2.4 square meters, and the second placard used an iron plate of .97 square meters.