The ratio of income of Jitendra, and Narendra is 4 : 7 and the ratio of their expenditure is 6 : 5 respectively. If Jitendra saves Rs..400 out of Rs.2,800 income, then find the savings of Narendra.

Rs. 2,900

                      Jitendra  :  Narendra 

Income                4       :     7                  

Expenditure         6       :      5

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Income of Jitendra = 2,800 = 4R

1R = 700

∴ Income of Narendra = 7R = 7 x 700 = 4,900

Savings of Jitendra = 400, Expenditure = 2800 - 400 = 2400 = 6a

1a = 400

∴ Expenditure of Narendra = 5a = 5 x 400 = 2000

Therefore, Saving of Narendra = 4900 - 2000 = 2,900