6 x 4 = 24
(1/4) x 24 = 6u ——- 14 stickers and 6 stamps
cost of 1 stamp ——- cost of 3 stickers
6u ——- 14 + 18 = 32 stickers
24 – 6 = 18
(5/6) x 18u = 15u ——- (32/6) x 15 = 80
80 + 14 = 94

Ans : 94 stickers.