instruction:
The task is to generate the correct answer for a given math problem.
question:
Problem: of the 130 employees at company x , 80 are full - time , and 100 have worked at company x for at least a year . there are 20 employees at company x who aren ’ t full - time and haven ’ t worked at company x for at least a year . how many full - time employees of company x have worked at the company for at least a year ?
answer:
30


question:
Problem: in one alloy there is 12 % chromium while in another alloy it is 8 % . 35 kg of the first alloy was melted together with 40 kg of the second one to form a third alloy . find the percentage of chromium in the new alloy .
answer:
9.75 %


question:
Problem: the present worth of rs . 2310 due years hence , the rate of interest being 15 % per annum , is :
answer:

rs . 1680