Miscellaneous Quiz | RRB NTPC

Rajiv walked from A to B, B to C and C to D respectively at the speed of 5 km/hr, 4 km/hr and 6 km/hr. If the distance between A to B, B to C and C to D are equal and total time taken by the Rajiv From A to D is 22.2 minutes, the find each of distance (in m) travelled by Rajiv.

A and B together can complete the piece of work in 15 days. They started working together but after 7 days, A left the work and the remaining work was completed by B in 12 days. In how many days A alone can complete the work?  

In the vessel milk and water are in the ratio 5 : 3. If the present quantity of mixture in the vessel is 4 litres, then what is the quantity of water (in litres) added in the vessel to make the ratio of milk and water 1 : 1?

The average of 17 observations is 15. One more observation is added and the average decreases by 1.5 units. What is the value of observation that is added?

What will be the simple interest on ₹ 5000 between 1^st May and 31^st December at the rate of 9% per annum?

Find the largest 3-digit number that is exactly divisible by 16, 20 and 24.

If tan 7θ tan 8θ = 1, then find the value of sec 5θ + cosec 10θ.

The ratio of angles of a triangle is 4 : 7 : 9. What is the average of smallest and largest?

The curved surface area of a right circular cylinder is 360π sq. cm and radius of its base is 15 cm. what is the volume (in cm³) of the cylinder?