Question

Aggregates from two sources having bulk specific gravities of 2.753 and 2.649 were
blended at a ratio of 70:30 by weight respectively. What is the bulk specific gravity of the
aggregate blend?
a) 2.155
b) 2.689
c) 2.721
d) 2.356​

Answer 1

Answer:

the correct answer is b) 2.689