Question

who says this questions first I select him as the brainliest



but the first I need good solution!!

Answer 1

answer is first
$\\ 12 \times 15 = 180 \\ 180 \div 4 = 36 \\ 36 - 12 = 24$
24 is the answer
please mark this answers as a brainliest answers please

Answer 2

Answer:

as average of all brothers

sum of all ages/6 bros=15

sum of all ages=15*6=90

sum of all ages at 1957 will be 90+6(7)as age increase every year

=132

and the youngest bro died at age of twelve

=132-12=120

and at year 1958 sum of all ages will be 120+5=125

now average of all five bros will be 125/5=25

Step-by-step explanation:

plz mark it as brainliest