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Popular Questions
- First term of the 11th group in the following groups (1), (2,3,4), (5,6,7,8,9),...........is
- 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 mean of the series a , a+nd. A+2nd is
- The sum of n terms of the series (1/1+root3) + (1/root3+root5) + (1/root5 +root7) .......is
- G.M.and H.M. of two numbers are 10 and 8 respectively. The numbers are
- If the A.M. is twice the G.M. of the number a and b , then a:b will be
- p^th term of the series (3-1/n)+(3-2/n)+(3-3/n)+.....will
- The harmonic mean between two numbers is 14 2/5 and the geometric mean 24 .The greater number between them is
- 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 y=x-x^2+x^3-x^4+.....infinite, then value of x will be
- If the Pth term of an A.P. be q and Qth term be p, then its
- G.M. and H.M. of two numbers are 10 and 8 respectively. The numbers are
- If a1, a2 ......an are positive numbers such that a1,a2.......an=1, then their sum is
- The geometric of two numbers is 6 and their arithmetic means is 6.5 . The number are
- If the 9th term of an A.P. be zero, then the ratio of its 29th and 19th term is
- If abc are in A.P. as well as in G.P., then
- Three numbers are in A.P. whose sum is 33
- The product of n positive number is unity . Their sum is
- If (a^n1+ b^n+1) / (a^n + b^n) be the A.M. of a and b, then n=
- If a, b,c are in G.P. then log a x, log b x, log c x in
- If the ratio of two numbers be 9:1, then the ratio of geometric and harmonic means between them will be
- A man saves Rs. 200 in each of the first three months of his service
- The difference between two numbers is 48 and the difference between their arithmetic mean and their geometric mean is 18. Then the..
- 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
- The first term of an A.P. is 2 and common difference is 4 . The sum of its 40 terms will be
- If x is equal to infinity sigma(n=0) a^n, y is equal to infinity sigma(n=0) b^n, z is equal to infinity sigma(n=0) (ab)^n, where a..
- 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
- If the A.M., G.M. and H.M. between two positive number a and b are equal , then
- If Sk denotes the sum of first k terms of an arithmetic progressive whose first term and common difference are a and d respectivel..
- If three number be in G.P., then their logarithms will be in
- If the first term of an A.P. be 10, last term is 50
- The value of a^(logb x), where a = 0.2, b = root 5, x = 1/4+1/8+1/16+........ to infinity is
- 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
- A number is the reciprocal of the other. If the arithmetic mean of the two numbers be 13/12, then the numbers are
- If the sum of n terms of an A.P. is
- An A.P., a G.P. and a H.P. have the same first and last terms and the same odd number of terms .The middle terms of the three ser..
- In an A.P., the first term is 2 and the sum of first five terms is 5
- Let a1,a2,a3,........be terms of an A.P . If
- If a,b,c are in H.P. , then for all n E N the true statement is
- If a,b,c are in A.P. and a,b,d in G.P., then a,a-b , d-c
