For the following questions answer them individually
The average of 25 numbers is zero. At most, how many of these numbers can be greater than zero ?
The average of 50 numbers is 75. If the average of first set of 25 numbers is 65, then what is the average of the second set of 25 numbers?
A shopkeeper earns the same percent of profit as well as loss by selling two similar pieces of furniture for ₹18000 and ₹10000, respectively. At what price should he sell it to earn a profit of 50%?
If 60% of a number is equal to $$\frac{3}{7}$$ of another number, then what is the ratio of the two numbers?
The Table shows the distribution of the marks obtained by various students in a class. What is the ratio of the number of students getting $$\geq$$ 20% in English and $$\geq$$ 80% in Hindi to $$\geq$$ 40% in English and $$\geq$$ 60% in Hindi?
What is the value of $$(1 \times 2 + 2 \times 3 - 3 \times 4 + 4 \times 5 - 5 \times 6 + 6 \times 7)$$?
The total surface area of a hemisphere is 462 cm$$^2$$. What is its diameter?(Take $$\pi = \frac{22}{7}$$)
A farmer sells wheat. He mixes the two types of wheat he grows. 30 kg of the first group costs him ₹900 and 20 kg of the other group costs him ₹1100. At what price per kg should he sell the mixture so as to earn 25% on his average cost?
A hemisphere of radius 30 cm is molded to form a cylinder of height 180 cm. The diameter of the cylinder is:
The Pie chart shows the proportionate population of seven villages. The seven villages make up a district. If the population of villages F and G combined is 35000, then what is the total population of the district?