Aptitude - Average - Discussion
Discussion Forum : Average - General Questions (Q.No. 7)
7.
The average monthly income of P and Q is Rs. 5050. The average monthly income of Q and R is Rs. 6250 and the average monthly income of P and R is Rs. 5200. The monthly income of P is:
Answer: Option
Explanation:
Let P, Q and R represent their respective monthly incomes. Then, we have:
P + Q = (5050 x 2) = 10100 .... (i)
Q + R = (6250 x 2) = 12500 .... (ii)
P + R = (5200 x 2) = 10400 .... (iii)
Adding (i), (ii) and (iii), we get: 2(P + Q + R) = 33000 or P + Q + R = 16500 .... (iv)
Subtracting (ii) from (iv), we get P = 4000.
P's monthly income = Rs. 4000.
Discussion:
93 comments Page 9 of 10.
Soumya said:
1 decade ago
8250-6250=2000
but how did we get 4000
but how did we get 4000
Shazeab choudhary said:
1 decade ago
6250-5050 = 1200.
5200-1200 = 4000.
5200-1200 = 4000.
Sonu said:
1 decade ago
You are absolutely right Praveen.
Deepak Kumar sharma said:
6 years ago
5050 + 5200 = 10250-6250 = 4000.
Subhankar said:
7 years ago
5050+5200=1025, 10250-6250=4000.
Siva said:
1 decade ago
2p=2(5050+5200-6250)
=>p=4000
=>p=4000
Thimoty said:
1 decade ago
Praveen you are answer is good.
Amani said:
9 years ago
Easily explained @Yesu Babu.
Akhilesh said:
7 years ago
Thanks for the @Sai Kumar.
Ravi said:
8 years ago
Superb, thanks @Praveen.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers