Respuesta :

Bromine67

Step-by-step explanation:

For problem 1,

Let the required number be x,

2 x/4 = 11/4

or, (8+x)/4 = 11/4

or, 8+x = 44/4

or, 8+x = 11

or, x = 11-8

so, x = 3

For problem 2,

Let the required number be y,

y/10 = 4/5

or, 5y = 40

or, y = 40/5

so, y = 8

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