Question

01. The product of two rational numbers is -28/81.If one of them is -2/3 , then find the other.
02. A train covers 386 2/5 km in 4 3/5 hours. Find its average speed.
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Answer 1

-2/3*x=-28/81

x=+3/2*-28/81

x=

-84/162

x=-42/81

x=-14/27

and=-14/27