If y=x-x^2+x^3-x^4+.....infinite, then value of x will be
If a/b , b/c , c/a are in H.P. , then
If A1,A2, be two arithmetic means between 1/3 and 1/24 , then their values are
If the Pth term of an A.P. be q and Qth term be p, then its
A man saves Rs. 200 in each of the first three months of his service
If the A.M. is twice the G.M. of the number a and b , then a:b will be
The geometric of two numbers is 6 and their arithmetic means is 6.5 . The number are
If A1, A2,are the two A.M.s between two numbers a and b and G1, G2 be two G.M.s between same two numbers, then
The product of n positive number is unity . Their sum is
Three numbers are in A.P. whose sum is 33
The solution of the equation (x+1)(x+4)(x+7)+....+(x+28)=155 is
If the 9th term of an A.P. be zero, then the ratio of its 29th and 19th term is
If the sum of n terms of an A.P. is
The first term of an A.P. is 2 and common difference is 4 . The sum of its 40 terms will be
In an A.P., the first term is 2 and the sum of first five terms is 5
If twice the 11th term of an A.P. is equal to 7 times of its 21st term, then its 25th term is equal to
If the first term of an A.P. be 10, last term is 50
Three number are in A.P. such that their sum is 18 and sum of thier squares is 158. The greatest number of them is
Six numbers are in A.P. such that their sum is 3. The first terms is 4 times the third term. Then the fifth term is
The difference between two numbers is 48 and the difference between their arithmetic mean and their geometric mean is 18. Then the..
If a^,b^,c^ are in A.P., then which of the following is also in
If abc are in A.P. as well as in G.P., then
The first to term of a geometric progression add up to 12, The sum of the third and the fourth terms is 48. If the terms of the ..
If the sum of first n natural numbers is 1/5 times the sum of
If a, b,c are in G.P. then log a x, log b x, log c x in
G.M. and H.M. of two numbers are 10 and 8 respectively. The numbers are
If Sk denotes the sum of first k terms of an arithmetic progressive whose first term and common difference are a and d respectivel..
Three numbers whose sum is 15 are A.P. if they are added by 1,4 and 19 respectively they are in G.P. The number are
The harmonic mean between two numbers is 14 2/5 and the geometric mean 24 .The greater number between them is
Let a1,a2,a3,........be terms of an A.P . If
p^th term of the series (3-1/n)+(3-2/n)+(3-3/n)+.....will
If the ratio of two numbers be 9:1, then the ratio of geometric and harmonic means between them will be
A boys goes to school from his home at a speed of x km/hour and comes back at a speed of y km/hour, then the average speed is give..
If a1, a2 ......an are positive numbers such that a1,a2.......an=1, then their sum is
If the A.M., G.M. and H.M. between two positive number a and b are equal , then
The sum of the first four term of an A.P. is 56. The sum of the last four terms is 112. If its first term is 11, the number of ter..
If a,b,c are in A.P. , then 2^ax+1 , 2^bx+1, 2^cx+1 , x is not = 0 are in
If a,b,c are in A.P. and a,b,d in G.P., then a,a-b , d-c
If 1, log9 further equation is given below
The number are in G.P. such that their sum is 38 and their product is 1728.The greatest number among them is
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