If in a triangle the circumcentre, incentre, centroid and orthocentre are at the same place, then what will that triangle be like?

Direction: Study the line graph carefully to answer the following questions.
Line graph shows the production (in thousand units) and percentage of exported mobiles, computers and laptops.

Find the total number Mobiles exported in the year 2011, 2013 and 2015 together? 

To cover a certain distance with a speed of 60 km/hr, a train takes 15 hours. If covers the same distance in 12 hours, what will be its speed?

The value of $$ {(cos {\ 9°}+sin{\ 81°}})({sec {\ {9°}+cosec{\ 81°}}})\over{sin{\ 56°}sec{\ 34° }}+ {cos{\ 25°}cosec{\ 65°}}$$ is:

A man crosses a diagonal of a square in 1.5 minutes with the speed of 4 k/h then the area of the square is -

(sinθ+cosecθ)²+(cos θ+ sec θ)²=?

42 cm a circular wire of diameter is folded into a rectangle whose sides are in the ratio 6: 5. What will be the area of the rectangle?

What is the compound interest on a sum of ₹25,000 after three years at a rate of 12 per cent per annum interest compounded yearly?