Others Maths Puzzle

Q. Ravi borrows a sum of Rs. 1200 at a rate of interest double the previous one.At the end of the year,the sum of interest on both the loans is Rs.216. What is the first rate of interest per annum?

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Others Other Question

Q. A contractor undertakes to build a wall in 50 days.He employs 50 men for the same. However,after 25 days he finds that the work is only 40% complete. How many more men need to be employed to complete the work 10 days before time? Q. There are 6 cubes arranged in two rows, 3 each. one on the other. now the middle one of the top layer is removed. and other top layer cubes are cut into 27 small cubes each and the bottom layer cubes are cut into 64 small cubes each. now the whole structure is painted.

a) how many cubes are there with one face painted?
b) how many cubes are there with 2 face painted?
c) how many r painted with 3 faces?
d) how many r painted with 4 faces?
e) how many with no face painted ?