Quantitative Aptitude - Arithmetic Ability Questions

If the simple interest on Rs. 400 for 10 years is Rs. 280, then rate of interest per annum is

By increasing the price of entry ticket to a fair in the ratio 11:16, the number of visitors to the fair has decreased in the ratio 19:9. In what ratio has the total collection increased or decreased?

The length of the diagonal and the breadth of a rectangle is 26 cm and 10 cm respectively. Calculate its area (in cm2).

A train starts from a place A at 8:00 a.m. and arrives at another place B at 1:30 p.m. on the same day. If the speed of the train is 30 km/hr, then what will be the distance (in km) covered by the train?

Find the unit place digit in 71 x 72 x 73 x 74 x 76 x 77 x 78 x 79.

A and B can do a piece of work in 24 and 30 daysrespectively. Both started the work and worked for 6 days.Then B leaves the work and C joins and the remaining workis completed by A and C together in 11 days. Find the days in which C alone can do the work

What is the value of 10% of 150% of 400?

What is the angle between the two hands of a clock when the time shown by the clock is 8 p.m.?(in degrees)