The simplest method is probably to form comparables. You have a:b = 2:5 and b:c = 1:4. You need to find a:c, so it would be helpful if you could have a:b:c.lp_144 said:If the ratio of a to b is 2 to 5, and the ratio of b to c is 1 to 4, what is the ratio of a to c?
lp_144 said:If the ratio of a to b is 2 to 5, and the ratio of b to c is 1 to 4, what is the ratio of a to c?
(a) 1:2
(b) 1:10
(c) 5:8
(d) 5:4
(e) 5:2
Those are the choices for the problem.
Can someone please explain to me how to solve this?
I got 1/10. This method is easier, thanks!Subhotosh Khan said:These kinds of problems are generally given in SAT where you need to solve the problem fast!
Given:
\(\displaystyle \frac{a}{b}\, = \, \frac{2}{5}\)
\(\displaystyle \frac{b}{c}\, = \, \frac{1}{4}\)
what do you get when you multiply:
\(\displaystyle \frac{a}{b}\cdot\frac{b}{c}\)