if p,q-->real number ,are the roots of the equation ax^2+bx+c=0,k-->real number lies between p,q if
a)a^2*k^2+bk+cb)a^2*k^2+abk+ac
c)ak^2+abk+ac>0
d)NOT
no of natural no solutions of a+b+c
PQRS is a rhombus. Its midpoints are joined to give a quadrilateral MNOP. The midpoints of this quadrilateral are joined to give another inner quadrilateral ABCD. This process is continued for every rhombus. What is the sum of perimeters of all the quadrilaterals formed if the sum of all the areas is 64sqrt3
Vaishnavi has to commute everyday from her house to her college. Today, she started from her house at 8:00 a.m. and covered a certain distance by 9:00 a.m. After travelling a further 75% of that distance, she found that she had covered 75% of the total distance. What part of the total distance did she cover by 10:00 a.m.?
There is a trapezium with both non-parallel sides equal. A line parallel to base divides the non-parallel sides in ratio a:b. Find area of trapezium.
A similar ques appeared in CAT13. I don't know if anything is missing or not. Approach??
The three words "TATA Assets Rock" are flashed such that the words individually are switched on at regular intervals of 4,7 and 9 seconds respectively and after they are switched on, the words are switched off after 2 sec, 4 sec and 5 sec respectively. If at time 't' all the words happened to switch off simultaneously, find the least time 't' which all three words will switch on simultaneously.
a.94
b.252
c.126
d.38
how tto find which one of these is the gretest fast?
484x114x18
341x120x28
382x125x22
438x108x24
tell me a fast method pls
Find the triangle of PQR? Please tell ur approach
If a+b+c=0 , then the equation 3ax^2 +2bx+c=0 has :
1) at least 1 root in (0,1)
2) one root in (2,3) and other in (-2,-1)
3) imaginary root
4) none of the above
how to solve;-
If ax+by=k, the find the minimum value of x^p*y^q
or
If x^p*y^q=k, then find the maximum value of ax+by ??
If log N to the base a + log M to the base B necessarily greater than 1?
1) N>a and M> b
2) A, B, N and M are positive numbers
Can be answered by one but not by other
Can be answered by either statement alone
If the statement can be anwered by using both statements alone but not by any one
Cannot be answered even by using A and B
A cube of side 12 cm is painted red on all the faces and then cut into smaller cubes, each of side 3 cm. What is the total no. of smaller cubes having none of their faces painted?
How to approach such quesions? Please help.
plz solve this nd explain d approach....
A bike running at 80 km/h initially is slowed down to 60 km/h as soon as the fuel indicator touches the half level mark. It keeps running at this speed till it runs out of fuel, thereby covering a total distance of 640 km in 10 hours. If the bike consumes 2 litres of fuel per hour, what is the capacity (in litres) of the fuel tank of the bike?
a16
b20
c40
d32
Is that 32 liters of fuel
4 circles are drawn touching each other of radius 5 each. find the area of the circle that can be drawn in the space between these circles..plss explain in detail..hw do find out d radius of d smaller circle...
3 numbers are chosen at random from 1st 24 natural numbers. find the probablity that they are in AP. plz explain the approach.
If x+y+z=3Mininmum valve of 1/x+1/y+1/z?
answer and approach please!
P=(x+3y+5z)(1/x+1/3y+1/z) nd x+6y=6. For what value of z,P will be minimum,(i aint sure of the answer, steps pls)
- 1/5
- 2/5
- 3/5
- 5/3
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