Question

A 1220 feet length of road is being repaired. After three days, the workers had repaired 3/4 of the road. What length of the road is left unrepaired

Answer 1

3/4is repaired
remaining is 1/4
1/4×1220
=305
so remaining road length is 305

Answer 2

total length =1220feet
length of road repaired =
$\frac{3}{4} of \: 1220$
$\frac{3}{4} \times 1220$
915 feet
length left to be repaired=
1220 - 915 =305 feet