The average age of 40 employees in abranch of a bank is 35 years. When a new employee joined the bank the average age increased to 35.5 years. What is the age of the new employee?
A20.5
B50
C50.5
D55.5
Answer: D - 55.5
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There are 8 job applicants sitting in waiting room; 4 women and 4 men. If two of the applicants are selected at random, what is the probability that both will be women?
A1/2
B1/4
C3/14
D3/7
Answer: C - 3/14
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The sun of daily income of P, Q and R is Tk.90. If Q earns taka 10 more than P and R earns double of what Q earns, then what is the average of daily income of P and Q?
A10 Tk.
B20 Tk.
C30 Tk.
D40 Tk.
Answer: B - 20 Tk.
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