A company produces an average of 4000 items per month for the first 3 months. How much items, it must produce on an average per month over the next 9 months to get average of 4375 items per month over the whole year? 

A can paint a house in 55 days and B can do it 66 days. Along with C, they did the job in 12 days only. Then, C alone can do the job in how many days?

A train of length 250 m crosses a platform of length 350 m in 50 seconds. In what time will the train cross a platform of length 230 m?

ABCD is parallelogram. P and Q are the mid points of sides BC and CD respectively. If the area of ∆ABC is 12 cm² then the area of ∆APQ is 

The square root of a positive number less than 100 lies between

In ΔABC θ is an acute angle and tanθ is equal to three times of cotθ. Find the value of $$ {sin^{2}θ+cosec^{2}θ-{1\over 2}cot^{2}θ}$$.

Direction : What should come in place of the question (?) in the following question.

12 × 3.5 – 8.5 × 3.2 =?

Mukesh got series of discount 30%, 25%, 15% on his shirt. Find out the single equivalent discount.