Question
When 18 years is subtracted from the present age of A
and the obtained result is divided by 3, then the present age of his nephew is obtained. If the present age of his nephew is 9 years less than the present age of A’s son who is 16 years old, then find the present age of A.Solution
Let the Present age of A be ‘x’ years Present age of his nephew = 16 – 9 = 7 years Therefore, {(x – 18)/3} = 7 Or, x – 18 = 21 Or, x = 39 Therefore, present age of A = 39 years
Feni is made from
Which are of the following describes the characteristics of Sedges?
An extreme modification in the order Diptera, where hind wings are reduced to nubs used for balance and direction during flight is
Rice variety IR–36 belongs to the groups of:
Which soil type is formed under waterlogged conditions and exhibits bluish-grey mottling?
The Backcross method of breeding is used to:
Urea contains:Â
Photosynthesis cycle of C₃ plants isÂ
Match List I with List II:
Choose the correct answer ...
Weed cause relatively more yield loss of rice when the crop isÂ