# your code goes here
__author__ = 'hariom'
# Enter your code here. Read input from STDIN. Print output to STDOUT
T = int(raw_input())
for i in range (0,T):
A,B,C1 = [int(x) for x in raw_input().split(' ')]
answer = 0
wr = 0
# write code to compute answer
while A>0 and A >= B:
A -= B ; answer +=1
wr +=1
if wr == C1:
answer +=1
wr = 1
print answer
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