hi guys...
A and B are single digit whole numbers and A > B. A + B and (A + B)N where N is a natural number always end with the same digit. Let the product of A and B be equal to C. C and CN end with the same digit. How many ordered pairs (A, B) satisfy the conditions above?
can anybody explain to me what is equivalence relations in set ?
Hi , I have a doubt , please see :
x+y+z+u+t=10, where x,y,z,w are positive integers and non of them is more than 9 .
30 identical apples are to be distributed among 3
students such that none of the student gets more than 15 apples.
Any link where one can get good idea of cut-off of different institutes?
#unfortunate to post here
A sequence of 1000 numbers is in AP with a common difference of 3 between successive terms. The sum of all the terms of the AP is 10000. What is the sum of every fourth term of the same AP, starting with the first term and ending with the fourth last term?
bird sitting on a wall, spots an approaching train, which is 720 km away and moving with 15 m/s . The bird starts flying towards the train, and as soon as it reaches the train, it flies back, it continues to do so till the time the train clashes to the wall. if the bird flies at 120km/h. find the total distnce covered by the bird while it was flying towards the wall. Ans. 800 km.. Approach plz..
Some chocolates were distributed equally among all the students of first class and 11 chocolates were left. Had the same number of chocolates been distributed equally among the students of second class, 5 chocolates would have been left. If the number of students in the first class is 4 times of those in the second, than find the total students in both the classes.
a.10 b.20 c.30 d.40 e. Cannot be determined
- b
- a
- e
- c
- d
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Arnold starts a simple calculation. He multiplies the integers 1, 2, 3,âŚn taking two at a time and adds up the products. If n is 12, the final sum will be
2320
2640
2717
2574
2458
Need a clear Approach..4X4 matrix sums are always such a pain in the ass!!
The percentage content of an acid in three solutions forms a geometric progression. If we mix the first, the second and the third solutions in the ratio 3 : 2 : 1 by weight, we get a solution containing 22% acid. On the other hand, if we mix the solutions in the ratio 2 : 3 : 4 by weight, we obtain a solution containing 32% acid. Find the percentage of acid in each solution.
16%, 32%, 48%
27%, 9%, 3%
12%, 24%, 48%
32%, 18%, 12%
None of these
Statements : Some flowers are buds.
All buds are petals
No petal is pollen.
All pollen is fragrance.
Conclusions : I. No bud is pollen
.II. No flower is fragrance
.III. No petal is fragrance.
Only I follows
Only I and III follow
Only II and III follow
None follows
None of these
In the figure below, ABCD is a rectangle, where E and F are points on AB and CD respectively. EF when produced, meets BC at G, which divides BC externally in the ratio of 3 : 2 as shown. If the ratio of the area of the shaded region to the area of the rectangle ABCD is 3 : 5, then CF : FD =
Select one:
a. 1 : 2
b. 1 : 3
c. 1 : 4
d. 1 : 5
e. 1 : 6
How many integral values of 'x' are possible for which equals the square (2^70 + 2^1039 + 2^x) of a whole number?
if (bx-ay)/b = (cy-bz)/c = (az-cx)/a and
In the above figure, P and Q are points on the line joining B and C, while angle ABC = angle BCD = angle POQ = 90o, where O is the point of intersection of AQ and DP. R is a point on BC such that OQ is perpendicular to BC. If BP = PQ = QC and AB = (DC) = 5 cm, what is the length of OR?
Select one:
a. 1.5 cm
b. 2 cm
c. 2.5 cm
d. 3 cm
e. None of the above
There is a 5 feet wide lane. Both walls of the lane are perpendicular to the ground. Two ladders, one 13 ft long and other 15 ft long, are propped up from opposite corners to the adjacent wall, forming an X shape. Each ladder is so placed that one end of the ladder touches the corner while the other end touches the top of the wall facing it. The two ladders are also touching each other at the intersection of the X shape. What is the perpendicular distance from the point of intersection to the ground?
Select one:
a. 5/21/2 feet
b. 5x21/2 feet
c. 6.5 feet
d. 7 feet
e. Non of the above
In the given figure, BD:DC = 1:1 and AF:FC = 1:1. Through D, DE is drawn parallel to CA meeting AB at E. Then which of the following statements are correct?
Select one:
a. Quadrilateral AFDE is a rectangle
b. The areas of Î DEB and Î DFC are equal.
c. Î DEF = 1/2 Perimeter of Î ABC
d. Two of the above statements
e. Statements 1, 2, 3, all are true
The no of divisors of the form 4n+2 of the no 25200? n is whole no.
18 16 36 12...edited
I am not getting the answer for the below, please provide me the full solution..
- 1070
- 975
- 1100
- 1055
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