Question
The earnings of ‘P’, ‘Q’ and ‘R’ are in the
ratio 6:9:10 respectively. The average income of the three is Rs. 12,000. If ‘P’, ‘Q’ and ‘R’ spend 60%, 70% and 50% of their incomes respectively, find their average expenditure.Solution
ATQ,
Sum of incomes of ‘P’, ‘Q’ and ‘R’ = 12000 × 3 = Rs. 36,000
Income of ‘P’ = 36000 × (6/25) = Rs. 8,640
Income of ‘Q’ = 36000 × (9/25) = Rs. 12,960
Income of ‘R’ = 36000 × (10/25) = Rs. 14,400
Expense of ‘P’ = 8640 × 0.6 = Rs. 5,184
Expense of ‘Q’ = 12960 × 0.7 = Rs. 9,072
Expense of ‘R’ = 14400 × 0.5 = Rs. 7,200
Therefore, required average = (5184 + 9072 + 7200) ÷ 3 = Rs. 7,152
7/11 × 1034 + 1(4/7) × 2401 = 1230 +?
140% of 9/8 of ? = 108% of 2800
4.56 + 56.4 + 64.5 = ? + 10.46
- What will come in the place of question mark (?) in the given expression?
?² = 28% of 35% of 4500 12.5% of (100 + ?) = 40
What will come in the place of question mark (?) in the given expression?
? = 12.5% of 25% of 20% of 1280 + 1248
(? + 180 + 13 × 6) ÷ 20 + 3.5 × 512 (1/3) = 82
Solve for the ?
What will come in the place of question mark (?) in the given expression?
(437 + ? - 167) x 2.5 = 875(22% of 1500 + 15% of 2200) = ? x 11
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