Progressive Mathematics Learning Point

Class9: Granita Manjari
Question 10
A rational number has a terminating decimal expansion whose last non-zero digit occurs in the 4th decimal place. Show that such a number can be written in the form P) 10^4, where p is an integer not divisible by 10. Is it necessary that the denominator of this rational number, when written in the lowest form, is divisible by 2^4 or 5^4? Give reasons.

Class 9 Ganita Manjari .
Show that the rational number numbers a and b. (a+b)/2 lies between the Rational numbers a and b