Question

mary is twice older than her sister in 5 years time she will be 2 years older her than sister find how old are they both now how to solve the problem with steps wise ,

Answer 1

mary age is 4
and her sister age is 2
As if we add 5 to both
Mary age= 9
Her sister age= 7
As 4 is twice of 2 and if we add 5 there gap is of 2 years only
Hence proved