For the following questions answer them individually
The simple interest on a certain sum for 3 years at 14% p.a. is ₹4,200 less than the simple interest on the same sum for 5 years at the same rate. Find the sum.
If 450 men can finish construction of an apartment in 20 days, then how many men are needed to complete the same work in 30 days?
Two numbers are in the ratio of 6 : 5. If their HCF is 3, then what is the LCM of the two numbers?
A container contains 25 litre of milk. From this container, 5 litre of milk is taken out and replaced by water. This process is further repeated two times. How much milk is there in the container now?
The pie chart given below shows the number of bike sold by 8 different companies. The total number of bike sold by all these 8 companies are 2000. Number of bikes sold by a particular company is shown as a percent of total number of bike sold by all these 8 companies.
What is the difference between the average number of bikes sold by P, Q, R and S and the average number of bikes sold by T, U, V and W?