Find the number of triangles in the following figure :

How many triangles are there in the given figure?

Choose the correct mirror image of the figure (X) from amongst the four alternatives.

The total number of squares and rectangles in the following figure is:

Five friends A, B, C, D and E travelled to five different cities; Pune, Kolkata, Delhi, Bengaluru and Mumbai by different modes of transport; bus, train, aeroplane, car and boat from Goa. Further, the following information is given :

(A) The person who travelled to Delhi did not travel by boat.

(B) C went to Bengaluru by car and B went to Kolkata by aeroplane.

(C) D travelled by boat and E travelled by train

(D) Goa is not connected by bus to Delhi and Pune.

Now, which of the following pair of person and mode of transport is NOT correct?

The mirror image of the figure is

A square park $P Q R S$ of side $90 \mathrm{~m}$ is so located that its diagonal $P R$ is from north to south and the corner $Q$ is to the west of $S$. Radha and Mohan start walking along the sides from $Q$ and $R$ respectively in clockwise and anti-clockwise directions with speeds of $8 \mathrm{~km} / \mathrm{hr}$ and $10 \mathrm{~km} / \mathrm{hr}$. Where will they cross each other the second time ?