Question

Four years ago the sum of four persons where 40 what will be the sum of the ages after 2 years

Answer 1

four years ago, sum = 40

now , sum = (40)+4×(4)
= 40+16
= 56


after two years , sum = 56 + 2×(4)
=56 + 8
=64




$\huge{\bold{\red{Answer:::64}}}$