Practicing Success
The average monthly income of Rakesh and Suresh is Rs. 5050. The average monthly income of Suresh and Ramesh is Rs. 6250 and the average monthly income of Rakesh and Ramesh is Rs. 5200. What is the monthly income of Rakesh?
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3000 4000 6000 2500 |
4000 |
Sum of monthly income of Rakesh and Suresh = 5050 x 2 = 10,100 -------1st equation Sum of monthly income of Suresh and Ramesh = 6250 x 2 = 12,500-------2nd equation Sum of monthly income of Rakesh and Ramesh = 5200 x 2 = 10,400-------3rd equation Adding all three equations we get: 2(Sum of monthly income of Rakesh, Suresh and Ramesh) = 10,100 + 12,500 + 10,400 2(Sum of monthly income of Rakesh, Suresh and Ramesh) = 33,000 Sum of monthly income of Rakesh, Suresh and Ramesh = \(\frac{ 33,000}{2 }\) Sum of monthly income of Rakesh, Suresh and Ramesh = 16,500 Monthly income of Rakesh = Sum of monthly income of Rakesh, Suresh and Ramesh - Sum of monthly income of Suresh and Ramesh Monthly income of Rakesh = 16,500 - 12,500 Monthly income of Rakesh = 4,000
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