Rahul Sofat Solutions for Chapter: Ratio, Proportion and Unitary Method, Exercise 7: SOME NCERT TEXTBOOK QUESTIONS

The cost of one dozen pens is $₹180$ and the cost of $8$ ball pens is $₹56$. If the ratio of the cost of a pen to the cost of a ball pen is$15:k$, then find the value of $k$.

Determine if the following ratio form a proportion. Also, write the middle term and extreme term where the ratio form a proportion.

$25 \mathrm{cm}:1 \mathrm{m}$ and $₹40:₹160$.

Determine if the following ratio form a proportion. Also, write the middle term and extreme term where the ratio form a proportion.

$39$ litres$:65$ litres and $6$ bottles$:10$ bottles.

Determine if the following ratio form a proportion. Write Yes/No.

$2 \mathrm{kg}:80 \mathrm{kg}$ and $25 \mathrm{g}:625 \mathrm{g}$.

The middle terms term of the ratios that form a proportion $200 \mathrm{ml}:2.5 \mathrm{litres}$ and $₹4:₹50$ is $2.5$ litres $\times ₹$ _____

The temperature dropped $15$ degree celsius in the last $30$ days. If the rate of temperature drop remains the same, how many degrees will the temperature drop in the text ten days? 

Cost of $4$ dozen bananas is $₹60$. How many bananas can be purchased for $₹12.50$?

Anish made $42$ runs in $6$ overs and Anup made $63$ runs in $7$overs. Who made more runs per over?