A merchant can buy goods at the rate of Rs. 20 per good. The particular good is part of an overall collection and the value is linked to the number of items that are already on the market. So, the merchant sells the first good for Rs. 2, second one for Rs. 4, third for Rs. 6…and so on. If he wants to make an overall profit of at least 40%, what is the minimum number of goods he should sell?
A. 24
B. 18
C. 27
D. 32
remainder when 6^17+17^6 is divided by 7?
A general doubt.
For an isosceles triangle, will the altitude and median be one and the same??
roy is now 4 years older than erik and 2 years older than iris. if in 2 years roy will be twice as old as erik, then in 2 years what will be roy's age multiplied by iris's age?
options---
48
50
28
52
how many 4 digit nos. do not contain digits 3 or 6??
options---------
7200
3584
4096
5040
P is a point inside the triangle XYZ. Lines are drawn through P parallel to the sides of the triangle. The three resulting triangles with a vertex at P have areas 16, 25 and 36 (in cm2).What is the area of XYZ?
Let P,Q,R,S,T,U,V represent the seven digits from 0 to 6, not necessarily in that order. If PQ and RS are both two-digit numbers adding up to the three-digit number TUV, find the value of V.
Pls post the approach as well 😃
All the internal angles of a convex polygon are distinct integers (when expressed in degrees), with the greatest of them being 110degree. The number of sides of the polygon is at most:
1. 5
2. 6
3. 7
4. 8
5. 10
In the figure, ABC is a right-angled triangle with a right angle at A. AB = 18 cm and AC = 24 cm. DE, FG, HI are parallel to BC, CA and AB, respectively. What is the area of the hexagon DFGHIE, if DE = 10 cm, FG = 8 cm and HI = 6 cm? (in cm2)
@Aizen a cunning maths wizard has nasty habit of cheating people with numbers. He tells @ralins "I'll give you some sums which are obtained by adding some numbers. If you can tell me the logic behind it , I'll pay the amount in rupees equal to the sum of all the numbers. But if you fail to do so , you will have to pay me twice the amount" The sums given by @Aizen are 3, 17 , 49 , 105 , ... , 1281 , 1673. @ralins tries his level best to find the logic but fails to do so. As a result , how much money does @Aizen manage to extract from @ralins ?
-@A
P.S. Hope you don't mind @Aizen & @ralins 😛
-@A
P.S. Hope you don't mind @Aizen & @ralins 😛
there are four boxes coloured red, yellow, green and blue. if two boxes are selected, how many combinations are there for atleast one green box or one red box to be selected?
options--------->
1
9
6
5
all faces of a cube with 8 metre edge are painted red. cube is cut into smaller cubes of two metre edge, how many of the 2 metre cubes have the paint on exactly one face?
options--------->
36
24
48
60
Circles are drawn with ffour vertices as the centre and radius equal to the side of a square .If the square is formed by joining the midpoints of another square of side 2root(6),find the area common tto all the four circles
(a)[(root(3)-1)/2]6 pi
(b)4pi-3root(3)
(c)1/2(pi-3root(3))
(d)4pi -12(root(3)-1)
please post the solution as well
in a sequence of integers, a(n)=a(n-1)-a(n-2), where a(n) is the nth term in the sequence, n is an integer an n>=3, a(1)=1, a(2)=1. calculate s(1000) which is the sum of first 1000 terms---
options----
0
1
-1
2
if x^2-16>0....which must be true??
-4-4>xx>4
@amansahota @jasneetdua brothers if u remember theres a concept like for a polynomial , no. of real roots unreal roots..etc.. depending on sign changes... please elaborate if ya remember ???
if [x]n = x(x-1)(x-2).....(x-n) , n belongs to natural number and x= n+1
find sigma ( from n=1 to 5) [x]n ?
153
152
872
873
Let y = min {(x + 6), (4 – x)}. If x belongs to R, what is the maximum value of y?
1. 2
2. 5
3. 7
4. 12
5. None of these
kindly explain the approach also please
The motion of a particle is defined by S = 16t^3 – 14t^2 + 3t + 17, where s is in meters and t in seconds. Its acceleration at t = 3 seconds will be
1. 360 m/sec2
2. 260 cm/sec2
3. 390 m/sec2
4. 280 cm/sec2
5. None of these
For a rectangle of given perimeter, its area is maximum, when
1. both length and breadth are equal
2. thrice in length as breadth
3. twice in length as breadth
4. the diagonal is twice to its breadth
5. none of these