The sum of daily income of P, Q, 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?

A 40 Tk.
B 30 Tk.
C 20 Tk.
D 10 Tk.

Correct Answer: 20 Tk.

P+Q+R = 90 tkQ = 10+PR = 2Q = 2(10+P) = 20+2P            P+Q+R = 90            P+10+P+20+2P = 90            P = 15So,    Q = 10+P = 10+15 = 25Now, P+Q = 15+25 = 40Average of P and Q is = 40/2 = 20 (Ans) 
Bissoy MCQ
#গণিত #গড় (Average) #Investment Corporation Of Bangladesh #Investment Corporation - Asst. Programar - 16.05.2008

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