Question

28) The sum and the difference of the reciprocals of the ages of Aishwarya and her daughter Aaradhya is 5/40 and3/40 to respectively. Find their ages.​

Answer 1

Answer:

Let the ages be x-Aaradhya and y-Aishwarya

so 1/x+1/y=5/40

     1/x-1/y=3/40 [x is smaller than y so 1/x will be greater than 1/y]

let 1/x=u and 1/y=v then after cross multiplying-

40u+40v=5--------i

40u-40v=3---------ii

so 80u=8

u=1/10

substitute in i

40*1/10+40v=5

40v=5-4=1

v=1/40

since 1/x=u and 1/y=v

x=10 and y=40

Answer 2

Step-by-step explanation:

this is your answer hope it helps you