Three triangles are marked out of a bigger triangle at the three vertices such that each side of each of the smaller triangles is one-third as long as each correspondingside of the bigger triangle. The ratio of the area of the three small triangles taken together to that of the rest of the bigger triangle is?

The reciprocal of the value of  $$ 3 \frac{1}{2} - [ 1 - \frac{3}{4} +$$ { 2$$\frac{1}{2} - (1\frac{1}{2} - \frac{1}{3})$$ } ] 

A and B can complete a task in 20 days, B and C can complete it in 30 days while C and A can do the same task together in 24 days. How many dayswill each of B and C take to complete the task individually?

The angle of elevation of a bird from a point 60 m above the water in a pond is 30°. The angle of depression of the reflection of the bird under the water from the same point is 60°. Find the height of the bird in metres hovering over the pond.

Select the option that is related to the third term in the same way as the second term is related to the first term.
STEPS : SPETS :: CLOCK : ......?