What is the sum of all two digit numbers which give a remainder of $4$ when divided by $6$ ?
$777$
$776$
$780$
$784$
Three number are in $A.P.$ such that their sum is $18$ and sum of their squares is $158$. The greatest number among them is
Given that $n$ A.M.'s are inserted between two sets of numbers $a,\;2b$and $2a,\;b$, where $a,\;b \in R$. Suppose further that ${m^{th}}$ mean between these sets of numbers is same, then the ratio $a:b$ equals
Sum of the first $p, q$ and $r$ terms of an $A.P.$ are $a, b$ and $c,$ respectively. Prove that $\frac{a}{p}(q-r)+\frac{b}{q}(r-p)+\frac{c}{r}(p-q)=0$
If the angles of a quadrilateral are in $A.P.$ whose common difference is ${10^o}$, then the angles of the quadrilateral are
If $a_m$ denotes the mth term of an $A.P.$ then $a_m$ =