Cumulative Frequency distribution of less than type

Q.

The times (in seconds) taken by 150 athelets to run a 110 m hurdle race are tabulated below

$\begin{array}{ccccccc}\text{Class}& 13.8-14& 14-14.2& 14.2-14.4& 14.4-14.6& 14.6-14.8& 14.8-15\\ \text{Frequency}& 2& 4& 5& 71& 48& 20\end{array}$ The number of atheletes who completed the race in less than 14.6 s is

1. 11

2. 82

3. 130

4. 71