HARD
10th West Bengal Board
IMPORTANT
Earn 100

The present age of father is the square of present age of son. After some years when the age of son is half the present age of father, then age of father will be 8 times the present age of son. Find the present age of father.

Important Questions on Quadratic Equation in One Variable

HARD
10th West Bengal Board
IMPORTANT
A man goes to place of distance 8 km and returns to the same place by boat in 4 hours 16 minutes. If the speed of the stream is 1 km/hr. Find the speed of boat in still water.
MEDIUM
10th West Bengal Board
IMPORTANT
The fund of a club is 195. Each member gives the amount of money equal to the number of members and the total amount is distributed equally among them and each gets 28. Find the number of members of the club.
HARD
10th West Bengal Board
IMPORTANT
When a group of soldiers are arranged in 4 deep hollow squares the number of soldiers in the front row is 16 more than the number of soldiers in the front row when they are arranged in perfect squares. Find the number of soldiers.
MEDIUM
10th West Bengal Board
IMPORTANT
Find the nature of the roots of the equation 2x2-3x-5=0.
MEDIUM
10th West Bengal Board
IMPORTANT
Find the nature of the roots of the equation x2+4x+1=0.
MEDIUM
10th West Bengal Board
IMPORTANT
Find the nature of the roots of the equation 4x2+20x+25=0.
MEDIUM
10th West Bengal Board
IMPORTANT
Find the nature of the roots of the equation x2-8x+25=0.
MEDIUM
10th West Bengal Board
IMPORTANT
Find the nature of the roots of the equation x2-25x-4=0.