Question 1 :
A shop gives $20\%$ discount. What would the sale price of a dress marked at Rs.120.

Question 2 :
Arun bought a pair of skates at a sale where the discount given was 20%. If the amount he pays is Rs 1,600, find the marked price.

Question 3 :
A sum is taken for one year at $16\%$ p.a. If interest is compounded after every three months, how many times will interest be charged in one year?

Question 4 :
A machinery worth Rs 10,500 depreciated by $5\%$. Find its value after one year.

Question 5 :
Two times a number is a $100\%$ increase in the number. If we take half the number what would be the decrease in percent?

Question 6 :
Calculate the compound interest on Rs 10,800 for 3 years at $12\frac{1}{2}$%.

Question 7 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cf43f59b460d7261f152.JPG' /> In the above image, a primary school, the parents were asked about the number of hours they spend per day in helping their children to do homework. There were 90 parents who help for $\frac{1}{2}$ hour to $1\frac{1}{2}$ hour. The distribution of parents according to the time for which, they said they helped is given in the above figure, $20\%$ helped for more than $1\frac{1}{2}$ hour per day. $30\%$ helped for 1 hr to $1\frac{1}{2}$ hour; 50% did not help at all. How many said that they helped for more than $1\frac{1}{2}$ hours?

Question 8 :
A shopkeeper bought two TV sets at Rs 10,000 each. He sold one at a profit $10\%$ and the other at a loss of $10\%$. Find whether he made an overall profit or loss.

Question 9 :
Find selling price (SP) if a profit of 5% is made on a lawn mower bought at Rs 1150 with Rs 50 as transportation charges.

Question 10 :
<img style='object-fit:contain' src='https://teachmint.storage.googleapis.com/question_assets/cbse_ncert/61b1cf43f59b460d7261f151.JPG' /> In the above image, a primary school, the parents were asked about the number of hours they spend per day in helping their children to do homework. There were 90 parents who help for $\frac{1}{2}$ hour to $1\frac{1}{2}$ hour. The distribution of parents according to the time for which, they said they helped is given in the above figure, $20\%$ helped for more than $1\frac{1}{2}$ hour per day. $30\%$ helped for 1 hr to $1\frac{1}{2}$ hour; 50% did not help at all. How many parents were surveyed?