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9.8 × 77.9 ÷ (2.3)2= ? 10 × 78 ×1/4= ?
70 percent of first number is equal to 40 percent of the second number. What is the respective ratio of the first number to the second number?
A stone worth Rs.3800 drops and breaks with weight in the ratio 2:3:5. The price of stone is directly proportional to square of its weight. Find the tot...
The total number of students in a school is 24600. If the ratio of boys to the girls in the school is 75:89 respectively, then find the total number of ...
The cost of a piece of diamond varies with the square of its weight. A diamond of Rs.9720 value is cut into 3 pieces whose weights are in the ratio 4: 3...
The incomes of A, B, and C are in the ratio 3:4:5, and their expenditures are in the ratio 2:3:4. If A saves ₹2,000, what is the income of C?
Ratio of males to females in village ‘A’ and village ‘B’ is 9:10 and 17:18, respectively and number of females in village ‘B’ is 25% more th...
A plot has to be divided among P, Q and R in the ratio 3:5:7 respectively. If the area of plot received by R is 4200m² more than the area of plot recei...
Find the mean proportion of 8.4 and 18.9.
Determine the mean proportion of 40 and 19.6
If A:B = 7:6 and B:C = 12:15 respectively, then find the value of (A + C) :(A + B) .