Question

The mean of 13 numbers is 24. If 3 is added to each number, then find their new mean
plz explain step by step.​

Answer 1

Answer:

hey mate here is ur answer

Let the total sum be x

x/13=24

x=312.

now 3 is added to 13 numbers so sum will increase by

312+39=351.

New mean = 351/13 = 27.

hope it helps.

☆☆☆☆

Answer 2

Question :-

The mean of 13 numbers is 24. If 3 is added to each number, then find their new mean ?

$\huge{ \underline{ \underline{ \green{ \sf{ SoLuTiOn:-}}}}}$

Mean of 13 number = 24

Sum of 13 number = 24 × 13 = 312

When 3 is added to each number , we get

= 312 + ( 13 × 3 )

= 312 + 39

= 351

Now ,

$New \: mean \: value \: of \: 13 \: number = \frac{351}{13} \\ \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = 27$

Therefore,

${\purple{\boxed{\large{\bold{New \: mean = 27 }}}}}$