The sum of the coefficients of the polynomial (x – 1)^6(x – 2)^4 + (x – 2)^5(x + 1)^6 + (x + 1)^2(x + 2)^3 is
a) -8
b) 0
c) 32
d) None of these
Please Share your approach and any jugad if available
1^4+2^4+3^4+...........250^4 ... Puys what will be your approach??
A dishonest dealer claims to sell a product at its cost price. He uses a counterfeit weight which is 20% less than the real weight. Further greed overtook him and he added 20% impurities to the product. Find the net profit percentage of the dealer?
1) 12.5% 2) 50% 3)37.5% 4)25%
A 100 ml flask contains 30% acid solution. What quantity of the solution should be replaced with
12% acid solution so that the resultant solution contains 21% acid?
(a) 50 ml (b) 44.44 ml (c) 33.33 ml (d) 64 mPlease tell your approaches for this question:
What is the probability of scoring a hat-trick in an over?
Approach Pls !
All five digit numbers formed using all the digits 1, 2, 2, 8 and 9 are arranged inascending order. What is the 59th number in the arrangement?
Some numbers can be expressed as the sum of three of their factors. E.g. 12 can be expressed as
the sum of 2, 4 and 6. How many other such numbers are there which are less than 100?
(a) 16 (b) 15 (c) 7 (d) 2
At a particular time in the 21st century there were seven bowlers in the indian cricket team's list of 16 players short listed to play the next world cup.Statisticians discovered that if you look at the wickets taken by any of the 7 bowlers of the current cricket team, the no. of wickets taken by them had a strange property. The numbers were such that for any team selection of 1 players (having 1 to 7 bowlers) by using the number of wickets taken by each bowler and attaching coefficients +1,0 or -1 to each value available and adding resultant values , any number from 1 to 1093, both included could be formed.If we denote W1,W2,W3,W4,W5,W6,W7 as the 7 values in ascending order what could be the answer to the following questions:
Find the value of W1+2W2+3W3+4W4+5W5+6W6
a.2005 b.1995 c.1985 d.none
Find the index of the largest power of 3 contained in the product W1W2W3W4W5W6W7
a.15 b.10 c.21 d.6
If the sum of seven coeff is 0, find the smallest number that can be obtaineda
. -1067 b. -729 c. -1040 d. -1053
The number of polynomials of the form y^3 + ay^2 + by + c which are divisible by y^2 + 1 and where a, b and c belong to {1, 2, 3, 4, 5, 6}, is
a) 6
b) 7
c) 1
d) 36
Please share your approach
is dere a way to find no. of possible triangles that can be formed if the perimeter is given??
say p+q+r=27
how many triangles can be formed?
Find out the remainder when 32^32^32 is divided by 7.
You have 4 T-shirts, 2 Jeans, 6 Sarees, 5 Formal Shoes and 3 Cowboy boots. In how many ways can you decide what to wear?
If a, b, c and d are four odd positive integers in non-decreasing order, such that (ab + cd) – (a + b + c + d) = 6, how many values are possible for c?
How to Handle these type of queestions ?
Q. ab = cd = 2. Find the minimum value of a^2 + b^2 + c^2 + d^2 ?
Q. a+b+c = 24. What will be the maximum value of a^2*b^3*c
Q. 2x + 3y =10. Find the maximum value of x^3*y^2. provided that x,y are real and positive numbers.
@sagarcat @Dexian @SatadeepBiswas
the number of ways of arranging x students in a row such that no 2 boys sit together and no 2 girls sit together is y ( y>100). if one more student is added, then the no of ways of arranging as above increases by 200%. the value of x is ?? (approach plz) (ans 10)
1) (a^2 + b^2 + c^2 + d^2)/4 >= (a^2*b^2*c^2*d^2)^1/4...
(a^2 + b^2 + c^2 + d^2) >=8..Can someone explain how is this equation formed from the above one..
Approach Please..!!!
Approach Please..!!
50 cows graze a field in 40 days. 40 cows graze the same field in 80 days.What is the maximum number of cows that can graze the field for infinite time? Right answr is 30 ,,,,please tell approches