There were 490 T-shirts at a shop. ³₇ of them were with collars. T-shirts with collars were priced at $5 each. T-shirts without collars were priced at $6 each. The shop owner sold ³₅ of the T-shirts with collars and ⁴₅ of the T-shirts without collars. How much did he collect from all the T-shirts he sold?
Number of T-shirts = 7 u

7 u = 490

1 u = 490 ÷ 7 = 70

Number of T-shirts with collars
= 3 u
= 3 x 70
= 210

Number of T-shirts with collars sold 
= ³₅ x 210
= 126

Number of T-shirts without collars
= 4 u
= 4 x 70
= 280

Number of T-shirts without collars sold
= ⁴₅ x 280
= 224

Amount that the shop owner collected from the sale of the T-shirts with collars
= 126 x 5
= $630

Amount that the shop owner collected from the sale of the T-shirts without collars
= 224 x 6
= $1344

Total amount that the shop owner collected from all the T-shirts he sold
= 630 + 1344
= $1974

Answer(s): $1974