For the following questions answer them individually
P : Q = 4 : 5 and R is 15% less than Q. If Q = 300, then what is the sum of P and R?
The value of P varies directly as the square of Q. When Q is 4, then P is 48. What is the value of Q when P is 243?
On selling 18 pens at ₹660, there is a profit equal to the cost price of 4 pens. What is the cost price of one pen (in ₹)?
A camp of 250 soldiers has food for 600 days. After 60 days, 50 soldiers leave the camp. For how many days will the remaining food last from the time that these 50 soldiers left?
Vishal and Param each sold their article at ₹1,818 but Vishal incurred a loss of 10%, while Param gained by 1%. What is the ratio of the cost price of Vishal's article to that of Param's article?
A sum of ₹2,400 gives a simple interest of ₹504 in 3 years. Find the rate of interest per annum.
The average of 12 numbers is M and the average of 8 of these numbers is P. If the average of the remaining numbers is N, then which of the following options is correct?
The ratio of the quantities imported of steel and iron in 2018 was 3 : 2 and in 2020 it was 1 : 1. The ratio of the quantities imported of steel in 2018 and 2020 was 4 : 3. What was the ratio of the quantities imported of iron in 2018 and 2020?
What is the radius of a circular field whose area is equal to the sum of the areas of three smaller circular fields of radii 8 m, 9 m and 12 m, respectively?
The average age of two friends, A and B, is 24 years. The average age of A, B and C is 22 years. What is the age of C?
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