Quantitative Aptitude - Arithmetic Ability Questions

1/3 part of a certain journey is covered with the speed of 25 km/hr, 1/2 part of the journey is covered with the speed of 45 km/hr and the remaining part covered with the speed of 37.5 km/hr. What is the average speed (in km/hr) for the whole journey?

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?

The value of (2+32-3-342) is

If √x ­- √y = 1 , √x + √y = 17 then √xy = ?

The marked price of a pen is Rs 3000. The shopkeeper gives two successive discounts of 15% and a% to the customer. If the customer pays Rs 2142 for the pen, then what is the value (in percentage) of a?

If secA + tanA = x, then find the value of x.

The circumference of a circle is 110 cm. Find its radius (in cm).

In a triangle PQR, ∠PQR = 90 deg, PQ = 10 cm and PR = 26 cm, then what is the value (in cm) of inradius of incircle?