Question

Which calculation will always give a result greater than 1?

5 x a number less than 1
1 3/4 - a fraction less than 3/4
4/9 + a fraction less than 1/2
7/8 x a number less than 1

Answer 1

1 3/4 - a<3/4

proof:

1 3/4 -a<3/4

=>1 3/4 - 1 3/4 -a<3/4- 1 3/4

=>-a<-1

=>a>1