Question

Maya madhura and monisha are friends maya gets 16 out of 25 in a class test madhura gets20 their avg is 19 how much did monisha got

Answer 1

Correct Question:-

Maya madhura and monisha are friends maya gets 16 out of 25 in a class test madhura gets20 their avg is 19 how much did monisha got

Solution :

The mean =

$\implies\sf{ \frac{sum \: of \: observations \: }{number \: of \: observations} }$

$\implies\sf{mean =\frac{16 + 20 + x}{3} }$

$\implies\sf{ \frac{19 = 36 + x}{3} }$

$\implies\sf{57 = 36 + x}$

$\implies\sf{x = 57 - 36 = 21}$

Hence, Manisha got 21 Mark's in class test.