There is a pile of sand. It takes 36 cars to transport by car a and 45 cars by car B. It is known that each car of car a transports 1.5 tons more than that of car B. how many tons of sand is there?

There is a pile of sand. It takes 36 cars to transport by car a and 45 cars by car B. It is known that each car of car a transports 1.5 tons more than that of car B. how many tons of sand is there?

Let X be the tonnage of car a and y the total tonnage 36x = y; 45 (x-1.5) = y 36x = 45 (x-1.5)
36x=45x-67.5
45x-36x=67.5
9x=67.5
x=7.5
36×7.5=270

Two granaries coexist with 1800 tons of wheat. If 400 tons are transported from warehouse A, the weight of the remaining wheat in warehouse A is just 34 times that of warehouse B. how many tons of wheat were stored in warehouse B?

Suppose the weight of wheat in Bin B is x tons, and that in Bin A is (1800-x) tons, & nbsp; & nbsp; 1800-x-400 = x × 34, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 1400-x = 34x, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 1400-x + x = 34x + X, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; 74x △ 74 = 1400 △ 74, & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; & nbsp; X = 800. Or (1800-400) × 44 + 3 = 800 (tons); answer: warehouse B originally stored 800 tons of wheat