Two circle X and Y with centres A and B intersect at C and D. If area of circle X is 4 time area of circle Y, then AB=?

A circle touches a quadrilateral ABCD. Find the true statement: -

The number of students in three classes are in the ratio 2:3:5. If the number of students in each class is increased by 20 the ratio become 4: 5: 7. The total number of students before the increase was

If $$ {81\ × 343\ ×625}={3^{p}}\ {7^{q}}\ {5^{r}}$$ then find out the value of  $$ {\sqrt{(p-r)^{2}+q^{2}}}$$.

Find out the value of $$ {\sqrt{(121)}} +{\sqrt{(12321)}}+{\sqrt{(1234321)}}$$.

In which union territory is the Sparrow portal launched?

Who has won the Formula One Italian Grand Prix 2020 title?

Which state has launched a '10 week, 10 o'clock, 10 minute' campaign against dengue?