The number obtained by subtracting two-third of 75% of 600 from a number is 320, what is the original number?

If the volumes of two cubes are in the ratio 27 : 64 and then the ratio of their total surface area is 

Direction: Study the following graph carefully and answer the following questions.

What is the ratio of companies having more demand than production to those having more production than demand?

Four years ago, the age ratio of A and B was 2: 3 and after four years this ratio will be 5: 7. What is his present age?

Sin (45 + θ) – Cos (45 – θ) is:

The length of a rectangle is increased by 60% then by how much % should the breadth be reduced so that its area does not change?

Direction : What value should come in place question mark(?) in the following questions?

4 × 5² – 3² × 7 + 6²=?+24

Study the following graph carefully to answer the given questions

M can do a piece of work 5 days less than that of P. M and P began to work together but M leaves after some days and P completed the remaining work in 12 days. Number of days after which M left the job-