The sum of daily income of P, Q and R is Tk. If Q earns Tk. 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    18

B    20

C    14

D    12

Solution

Correct Answer: Option B

প্রশ্নমতে, 

বা, x+x+10+2(x+10) = 90 

বা, 2x+10+2x+20 = 90   বা, 4x = 60     x = 15     p = 15  

এবং Q এর আয় = 15 + 10 = 25  

গড় আয় = \(\frac{{15 + 25}}{2} = \frac{{40}}{2} = 20\) 

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions