Study the information given below and answer the questions that follow: The BSNL announced a cut in the STD rates on 27 December 2003. The new rates and slabs are given in the table below and are to be implemented from the 14 January 2004.
Rates (Rs. /min)
Distance
Peak Rates
Off Peak
(km)
Old
New
Old
New
50-200
4.8
2.4
1.2
1.2
200-500
11.6
4.8
3
2.4
500-1000
17.56
9.00
4.5
4.5
1000+
17.56
9.00
6
4.5
Question: 1
The maximum percentage reduction in costs will be experienced for calls over which of the following distances?
The percentage difference in the cost of a set of telephone cells made on the 13th and 14th January having durations of 4 minutes over a distance of 350 km, 3 minutes for a distance of 700 km and 3 minutes for a distance of 1050 km is (if all the three cells are made in peak times)