Quantitative Aptitude - Arithmetic Ability Questions

P and Q together can make a door in 12 days. They started the work together but after 8 days P left the work. The remaining work is completed by Q alone in 7 more days. In how many days can P alone complete the entire work?

The line segment AB intersects the straight line CD at B; AB will be smallest when ∠ ABD (in degrees) is

In the following question, select the odd letters from the given alternatives.

Find the odd word/letters/number from the given alternatives.

Find the area (in sq.cm) of a semi-circle of radius 7 cm

If x = 4aba+b, then what is the value of x+2ax-2a+x+2bx-2b ?

The average of 100 observations was calculated as 35.It was found later, that one of the observation was misread as 83 instead of 53. The correct average is :

A defective piece of article which costs Rs. 1200 is being sold at a loss of 15%. If the price is further reduced by 5%, find the S.P?