How many 4 digit natural nos exists such that the sum of first two digit is equals the sum of last two digit ?
Geo.
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Geo.
23 n 24?
A triangle is formed using the points A(x1,y1),B(x2,y2) and C(x3,y3). A point D (x4,y4) is given.How to find whether point D lies inside the traingle ABC?(Any other approach other than the area approach in which we would join D with 3 vertices of the triangle and check if sum of area of 3 smaller triangles =sum of bigger triangle)? @scrabbler Please have a look
How many 6-digit numbers contain exactly 4 different digits?
If x and y are irrational number, then x+y-xy is
- An irrational number
- A rational number
- A complex number
- A real number
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Please explain Answers -9,1,13,21
Please explain the solution??
if X+Y=4 , then max value of 1/x+1/y is
If a,b,c and d are natural numbers such that a^d+b^d=c^d, which of the following is true???
- d lies between the minimum of a,b,c and the maximum of a,b,c
- The maximum of a,b,c is at most d
- D=1
- The minimum of a,b,c is at least d
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K(N) denotes the number of ways in which N can be expressed as a difference of two perfect squares. Which of the following is maximum?
- K(105)
- K(110)
- K(384)
- K(216)
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What is the remainder when (13^100 + 17^100) is divided by 25?
N! is completely divisible by 13^52. What is sum of the digits of the smallest such number N?
how many six digit number have sum of digits as 9 ?
India and Brazil play soccer world cup finals where India defeats Brazil by 7-2.In how many different ways could the goals be scored, given that Brazil never had a lead over India during the match.Ans:27 Plz explain the approach
what is the last digit non zero digit of 96! ?
Please post explanation also
- Pq/p+q
- Q/p+q
- Q/p
- P/p+q
- P/q
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