For the following questions answer them individually
A person goes from J to K at a speed of 55 km/hr. He comes back from K to J at a certain speed. If his average speed is 660/17 km/hr, then what was his speed while moving from K towards J?
The compound interest (compounding annually) on a certain sum for 2 years at the rate of 60 percent per annum is Rs. 6240. What will be the simple interest on the same sum for 3 years at the same rate of interest?
What is the value of $$3.25 \times 3.25 \times 3.25 + 0.75 \times 0.75 \times 0.75 + 29.25$$?
The table given below shows the number of students in 6 different schools.
What is the total number of students in all schools?
A person lent certain sum of money at the annual rate of 20 percent on simple interest. In 10 years, the interest amounted to Rs. 800 more than the sum of lent. What is the sum lent?
A bus travels 166 Km in 3 hours and then travels the next 2 hours at 134 Km/hr. Find the average speed of the bus
Two cubes of iron whose edges are 7 cm and 11 cm are melted and formed into a single cube. Find the volume of the new cube formed.
A person bought 8 articles for 2 rupees. Find at what price should he be able to sell 120 articles to get a profit of 10%.
The numbers are in the ratio of 3: 5. if their HCF is 11, then find the sum of two numbers.