Question

Archana age is a multiplyof 7.
Next year ,her age will be a multiple of 5. if her age is between 20 and 80,how old will archana be in 8 years time?​

Answer 1

Answer:

My age lies between 20 and 50.

Therefore, it should be among the list of multiple of 7 are 21,28,35,42,49,56,63,70,77.

Given,

Next year, it will be a multiple of 5.

Among the numbers in the list, the only number when increased by 1 (to get next year's age) which becomes a multiple of 5 (5×10=50) is 49.

Therefore, the required age is 49

Answer 2

Given, her age is between 20 and 80.

We need to think of a number between 20 and 80 that is a multiple of 7, and when added 1 to it, it becomes a multiple of 5.

So, her present age is 49.

49 is a multiple of 7 and when added 1 to it, it becomes 50, a multiple of 5.

Archana's age 8 years later = 49 + 8

= 57 years

I hope this helps.