In a decreasing AP the sum of all its terms,except the first term,is equal to -6,the sum of all its terms,except the last term,is zero,and the difference of the tenth and the sixth term is equal to -16.What will be the first term of this series?
A group of friends have some money which was in an increasing GP.the total money of the first and last friend was 66 and the product of the money that the second friend had and that the last but one friend had was 128.If the total money with all of them together was 126,then how many friends were there?
If a,b,c and d are non zero real numbers such that (a^2+b^2+c^2)(b^2+c^2+d^2)
If log(5c\a),log(3b\5c) and log(a\3b) are in an AP,where a,b and c are in GP,then a,b and c are the lengths of sides of
The coefficient of x^15 in the product (1-x)(1-2x)(1-2^2x)....(1-2^15x) is equal to
The sequence Pn is in GP with P2/P4=1/4 and P1+P4=108.What will be the value of P3?
Let tn=n*(n!).Then summation tn where n=1 to 15 is equal to
any method instead of jus counting ????????????????/
Three consecutive positive integers are raised to the first, second and third powers respectively and then added. The sum of obtained is a perfect square whose square root equals the total of the three original integers. Which of the following best describes the minimum, say m, of these three integers?
In how many ways can 20 different beads be strung on a necklace???
There are 18 points in a plane of which 10 are on a straight line. Except for the triplets taken exclusively from these 10 points no other set of 3 points are collinear. How many
Q. Straight lines can be drawn by joining these point??
Q. Triangles can be drawn by joining these points???
Let k be an integer such that sum of the digits of k is 4 and lies between 105 and 106. How many values 'k' can have???
A & B start from their opposite ends to each other ,A starts by 6 and reaches the destination by 12 o clock. similarly B , 7 to 3 o clock, What is their meeting time??
Post the Approach too !
Hi puys...!!
i am facing problem in geometry...my concepts are clear .i am able to answer medium complexity questions ...but none of the higher complexity ones ( could not solve even one questio of CL funda book level 3 exercise of geometry)...any suggestions for improving?????
If 392 cm^2 is the area of a triangle having two sides equal to 40 cm and 70 cm. Find the other side.a. √1100 b. 80 c. 2√281 d. None of These
Let A,G and H be the AM,GM and HM of two positive numbers a and b.The quadratic equation
a and b are the roots of the eqn x^2 - 2x + 2.. find (a^9+b^9)[(1/a^9)+(1/b^9)]...
remainder when 20!/23 === ????( p-1)!+1/p =1 wilson theorem right but what should we do after this ... pls post ur approach