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 corresponding side 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 ?

Mr.X is the only son of Ms. Y's grandfather. If Mr. X has no brothers or sisters and his father is Ms. Y's grandfather, then Mr. X is Ms. Y's ___.

In a water molecule, the ratio of mass of Hydrogen to the mass of Oxygen is always:

A man misses a train by 1 hour if he travels at a speed of 4 kmph. If he had increased his speed to 5 kmph, he would gave still missed the train by 24 minutes. At what speed should he have travelled so that he reached the station exactly on time?

Select the option that fits in the blank space in the following figure.

Select the missing term based on the given related pair.

Consider the given statement to be true and decide which of the assumptions is/are implicit.

Statement :

A traffic board reads 'Speed thrills but kills'.

Assumptions :

1. Drive fast and experience the thrill

2. Fast driving will attract heavy fine.

In a concave mirror when the object is placed at infinity which of the following applies to the image?