With the amount borrowed from her family, she has a total of 20+40+30= <<20+40+30=90>>90 dollars.
With the amount gifted from her granny, she has 70+90 = <<70+90=160>>160 dollars.
She adds this to her savings, ending up with a total of 160+100 = <<160+100=260>>260 dollars.
She spends 3/4 of this money, which is 3/4*260 = <<3/4*260=195>>195 dollars.
The total she remains with is 260-195 = <<260-195=65>>65 dollars
#### 65