Question

2. Check whether the following are in proportion
a. 4km to 2000 m and 80g to 40g
b. 200 paise to 30 rupees and 4 minutes to 1 hour
c. 20 to 35 and 32 people to 56 people
d. 0.02 kg to 10g and 40 litres to 30 litres
3. Find x for which the following numbers are in
proportion.
a. 45,81, x. 99
b. 66, x, 72,132
4. a. If x is one-sixth of y, then find 'a' such that
x:y= 9:0
b. If x is one-ninth of y, then find 'a' such that
x:y= 12:a
5. Soma bought a dozen notebooks at 180. If Arun
wants to buy 25 such notebooks, how much money
should he carry with him?​

Answer 1

Ans-No,the 1st. one is not in praportion