class 11

Math

Algebra

Sequences and Series

Consider a two digit number which when divided by 7 leaves the remainder 2 or 5 then find sum of all possible number (a) $1356$ (b) $1256$ (c) $1456$ (d) $1265$

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The value of p if ,the mean of $23,25,p$ is 24

If $a,b,c,d,e,f$ are $A.M._{′}s$ between $2$ and $12$, then find the sum: $a+b+c+d+e+f$.

If eleven A.M.'s are inserted between $28$ and $10$, then find the number of integral A.M.'s.

Multiplied by 3 and then divided by 2.

The product of two numbers is $119$ and their AM is $12$. Find the numbers.

The sum of $n$ arithmetic means between $a$ and $b$, is

If $x,y,z$ are positive real numbers and $x=y+z12−yz $. The maximum value of $(xyz)$ equals

Find the GM between the numbers $0.15$ and $0.0015$.