A and B can complete a work in 80 days and 96 days, respectively. They completed the work in 32 days with the help of C. How many days will C take to complete the entire work alone?
A solid metallic cube of side 20 cm is melted and recast into a cuboid of length 40 cm and breadth 40 cm, What is the length (in cm) of the body diagonal of the cuboid?
A straight vertical pole was broken during a cyclone in such a way that its top touched the ground at a distance of 6√3 m from the bottom of the pole and made an angle of 30° with the horizontal. What was the height (in m) of the pole?
Study the given bar graph and answer the question that follows.
The average production in 2002 and 2003 was exactly equal to the average production in which of the following pairs of years?
The average age of 125 students in a group is 16.2 years. 40% of the students are boys and the rest are girls. The average age of the boys is 20% more than the average age of the girls. What is the average age (in years) of the boys?
Two sides of a triangle are 12.8 m and 9.6 m. If the height of the triangle is 12 m corresponding to 9.6 m, then what is its height (in m) corresponding to 12.8 m?
A sum of ₹2,432 amounts to ₹2,681.28 in 2 years at a certain rate per cent per annum, interest compounded yearly. What will be the simple interest (in ₹) on the same sum for 4(2/8) years at double the same rate?
A shopkeeper bought 40 dozen eggs at ₹1.40 each. 80 eggs were broken in transportation. He sold the remaining eggs at ₹1.60 each. What is his profit or loss per cent?
A solution contains acid and water in the ratio of 4 : 5. If 20% of the solution is replaced by water, then what will be the ratio of acid and water in the new solution?
