A can count 100 eggs in 4 minutes while B can count the same number of eggs in 5 minutes. How much time will be required if they work together to count 450 eggs?
A5 min
B15 min
C20 min
D10 min
Answer:
D. 10 min
Read Explanation:
A can counts 100/4 =25 eggs in 1min
B can counts 100/5=20 eggs in 1 min
A and B can counts 25+20=45 eggs in 1 min
so 450/45=10 min