Question
The monthly incomes of Arjun, Rohan, and Sameer are in
the ratio of 7:9:8, while their monthly expenditures are in the ratio of 3:4:5. Arjun earns Rs. 21,000 per month and saves Rs. 9,000 from his income. Based on this information, determine Sameer’s monthly savings.Solution
ATQ;
Let monthly income of ‘Arjun’, ‘Rohan’ and ‘Sameer’ be Rs. ‘7x’, Rs. ‘9x’ and Rs. ‘8x’, respectively.
ATQ;
‘7x’ = 21000
Or, x = 3000
So, monthly income of ‘Sameer’ = ‘8x = 8 × 3000 = Rs. 24,000
Let monthly expenditures of ‘Arjun’, ‘Rohan’ and ‘Sameer’ be Rs. ‘3y’, Rs. ‘4y’ and Rs. ‘5y’, respectively.
Monthly savings of ‘Arjun’ = Rs. 9,000
ATQ,
(21000 – 3y) = 9000
Or, 3y = 12000
So, y = 4000
So, monthly expenditure of ‘Sameer’ = 5y = 5 × 4000 = Rs. 20,000
Therefore, monthly saving of ‘Sameer’ = (24000 – 20000) = Rs. 4,000
? = 500.24 + 1013.97 – 7.992 Â
(0.89 3 + 1.64 3 +2.76 3 ) ÷ 5.89 = ?
6401.23 × `1 3/4` - 352.87 × ? = 10443.789
320.98 + 49.99% of (261.09 + 138.98) = ?
(`sqrt(224.95)` `xx` `sqrt(440.89)` ) + (`sqrt(783.82)` `xx` `sqrt(440.87)` ) = ? + 150.03% of 120.33 - 139.86% of 1249.88
...499.99 + 1999 ÷ 39.99 × 50.01 = ?
23.87% of 449.86 + 17.83 of 4.09 = ?
1959.09 + 33.94% of 6250.06 – ? = √10609.02 + √144.24
30.22% of (79.9 x 6.01) + 69.97 =?
(14.66)2 + (343.84 ÷ 3.88 - 55.87) = ? + 91.23
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