A contractor has the target of completing a work in 40 days. He employed 20 persons who completed (1/4) of the work in 10 days and left. The number of persons he has to employ to finish the remaining part as per target is:

P invests INR 9100 for 3 months, Q invests INR 6825 for 2 months and R INR 8190 for 5 months in a business. If the total profit amounts to INR 4158, how much profit should Q get

If '+' means '×','-' means '+', '×' means '-' and '÷' means '+' then the value of the given equation is :

9+8÷8-4×6=?

Ani and Kuni decided to meet at a museum that is towards south of their housing
society. Ani started at 12:OO noon at the speed of 60 kph. Kuni starts her journey
after 15 minutes with the speed of 65 kph. Select the time at which they will meet.

The average value of five numbers is 40. If a number is deleted from the five number, then the average will be reduced by 10. Find the deleted number.

Simplify :[[[1/2]²]^-2]^-1 = ?