2x+9y x,y >= 0
x and y are integers.
The Total Number of solutions ?
A.257,
B.256,
C.125,
D.128 ?
B.256,
C.125,
D.128 ?
Number of ways to put 3 different rings in 5 different fingers. Please Discuss
The c.i on certain sum of money for 2 years is rs.2200 and that for 3 years is rs.3640 what is the rate of interest?
Let f(x) = x^3 - 6x^2 + 13x - 6 and f(a) = 7, f(b) =1, find a + b.
How many and wich statements are required to ans the following ques.
Three friends A, G and S calculated their savings. It was found that the savings of A and G were in the ratio 1 : 2. What was the saving of A?
A: If S lends one-third of his savings to A, and one-third of the remaining to G, he will be left with the same amount of savings as A will have after receiving one third of the savings of S.
B: If S lends one-fourth of his savings to G and one-fourth of the remaining to A, then the savings left with him is Rs. 17,000 more than the initial savings of G.
John is working on an electronic LED board that has 480 LEDs numbered 1 - 480 and placed in ascending order on the board. He programs the board such that all the LEDs are initially switched off. At the end of one second, all the LEDs are switched on and at the end of two seconds, all the LEDs at even places invert their logic state i.e. they get switched off if they are on and get switched on if they are off. After three seconds, all the LEDs numbered 3, 6, 9, … invert their logic state. This pattern continues at the end of each subsequent second. How many LEDs are on just after 3 minutes and 45 seconds have passed?😠
OPTIONS
1)169
2)231
3)249
4)311
85! Ends with exactly 20 consecutive zeros. Even if 85! Is converted to base n (where n is a natural number), it would still end with exactly 20 consecutive zeros, what can be the maximum value of n?
a) 240
b) 360
c) 180
d) 300
e) None of these
Find the remainder when ((50)^56)^52 is divided by 11.
The number of terms in the expansion of (1+x^2 + x^4) ^100 is
In a community 80 people belong to group A, 70 people to group B and 60 people to group C. Further, 40 people belong to group A as well as B, 50 people belong to group B as well as C and 30 people belong to group A as well as C. Let the total number of people who belong to exactly one of the group be x, then how many different values of x are possible?
a) 11
b) 31
c) 10
d) 30
e) 21
Anyone want Number System Chapter from Nishit K Sinha?
I can send it if you want.
Solve the pair of equations in Base 7. Find x,y
2x-4y=33
3x+y=31. Where x and y are coefficients in base 7
3x+y=31. Where x and y are coefficients in base 7
Milk and water and water are mixed in vessel x in the ratio 4:1 and in vessel b in the ratio 5:2 what quantity should be taken from the vessel to have a mixture containing 7 kg of milk and 2 kg of water.
6 Gallon are drawn from a cask full of wine same process are repeat again the amount of wine to that of water in the cask is 25:24 .How much gallon does cask hold ??
from a 3:5 solution of milk and water , 20 % is taken out and replaced by milk. how many time should this porcess be done to make the ratio of milk to wate as 17: 8?
"Percentage" Chapter from Nishit Sinha.
If I get enough likes, I'm planning to post "Profit, Loss & Discount" from the same book.
help me....
how would u calculate unit digit of 8^9235!
Nishit K. Sinha (PART 1 : NUMBERS AND THEIR PROPERTIES) 2 Number Systems
Nishit K. Sinha (PART 1 : NUMBERS AND THEIR PROPERTIES) 2 Number Systems
In triangle ABC,points P1,Q1 and R1 divide the lines AB,BC and AC respectively in the ratio 2:1.In triangle P1Q1R1 the points P2
,Q2 and R2 divide the sides P1Q1,Q1R1 and P1R1 in the ratio of 2:1.In every such new triangle,a new triangle is generated by joining the points on the sidesthat divide the sides in the ratio of 2:1.Find the sum of the areas of all such triangles formed till infinity.(Area of triangle ABC ='A' sq. units.)
a. A/2 b.2A c.A/3 d.3A