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Popular Questions
- 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
- If the sum of n terms of an A.P. is
- If the 9th term of an A.P. be zero, then the ratio of its 29th and 19th term 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 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
- 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
- The difference between two numbers is 48 and the difference between their arithmetic mean and their geometric mean is 18. Then the..
- 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 solution of the equation (x+1)(x+4)(x+7)+....+(x+28)=155 is
- If a^,b^,c^ are in A.P., then which of the following is also in
- 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 abc are in A.P. as well as in G.P., then
- If the sum of first n natural numbers is 1/5 times the sum of
- The harmonic mean between two numbers is 14 2/5 and the geometric mean 24 .The greater number between them is
- 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
- If a, b,c are in G.P. then log a x, log b x, log c x in
- 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 a1, a2 ......an are positive numbers such that a1,a2.......an=1, then their sum is
- 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..
- 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 the A.M., G.M. and H.M. between two positive number a and b are equal , then
- If 1, log9 further equation is given below
- If a,b,c are in A.P. and a,b,d in G.P., then a,a-b , d-c
- The mean of the series a , a+nd. A+2nd is
- The number are in G.P. such that their sum is 38 and their product is 1728.The greatest number among them is
- The sum of n arithmetic means between a and b is
- If three number be in G.P., then their logarithms will be in
- 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..
- If all the terms of an A.P. are squared , then new series will be in
- 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. , then 2^ax+1 , 2^bx+1, 2^cx+1 , x is not = 0 are in
- The arthmetic mean of first n natural numbers
- If (a^n1+ b^n+1) / (a^n + b^n) be the A.M. of a and b, then n=
- If a,b,c If a,b,c, are in A.P. then a/ bc, 1/c , 2/b are in
