Question
The incomes of C and D are in the ratio 9:6, while their
expenditures are also in the same ratio of 9:6. What is the ratio of the savings of C to that of D?Solution
ATQ,
Let the income of C and D be Rs. 9x and Rs. 6x, respectively. Let the expenditure of C and D be Rs. 9y and Rs. 6y, respectively. Savings of C = 9x – 9y Savings of D = 6x – 6y Required ratio = (9x – 9y) : (6x – 6y) = 9:6 = 3:2
- What approximate value will come in place of the question mark (?) in the following question? (Note: You are not expected to calculate the exact value.)
(√360.99 + 161.14) ÷ 5 × 249.98 = ?
15.001% of 799.99 - 3/11% of 1099.99 + 111.002 = ?
{26.11 x 13.96 - (346.95 - 26.04 x 4.18)} = ?
If cosec (2A + B) = (2/√3) and cosec (A + B) = √2, find the value of (4A - B) .
Solve the following expression and calculate the approximate value.
398% of 388 + 129% of 323.89 – 430.93
The speed of the boat in still water is 20% less than the speed of the boat in downstream. The time taken by the boat to cover 780 km distance in upstre...
44.84% of 799.94 + (625.21 ÷ 24.91) – √(224.77) = ?
1131.98 + ? – 1125.04 = 1364.93 – 1168.01
A person invests a sum of money in a bank at a certain rate of interest. The interest earned at the end of the second and third y...
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