Study the given pattern.
How many cubes are needed to form pattern 25?
It is easy. I will tell you . 1 multiplied by 4 1=5 ,2 multiplied by 4 1=9.so,25 multiplied by4 1=101
Read the given passage.
The water-bearing layer of the earth called __P__ is made up of two components __Q__ and __R__ .
The top level of layer __P__ is called __S__ .
When too many tubewells are used in an area, the level of __S__ in that area goes down.Select the correct sequence of words to fill up the blanks in the above passage.
Nishi needs to send a parcel to her brother in U.S.A. She can use a/an _______.
C Railway mail
D All of these
there is no solution why?
Predict the duration of the following.
X : Day on Earth when Earth's rotational speed is somehow halved.
Y : Year on Earth when the distance between Earth and Sun is doubled.
Consider that all the other conditions remain the same.
A48 hrs--------365 days
B12 hrs--------730 days
C48 hrs--------730 days
D12 hrs--------365 days
Ans 1: (Master Answer)
Earth takes 24 hours for one complete rotation on its axis. If rotational speed of Earth is halved then it will complete one rotation in just double time i.e., 48 hrs. Earth completes one revolution in its orbit around Sun in about 365 days. If distance between Earth and Sun is doubled, i.e., radius of Earth's orbit is doubled then it will complete one revolution around Sun in just double time, i.e., 730 days.