Question 5 :
Pooja started her job with certain monthly salary and gets a fixed increment every year If her salary was Rs 4200 after 3 years and Rs 6800 after 8 years of service then what are her initial salary and the annual increment (in Rs)?

Question 6 :
A wholesaler sells an article for Rs. $2,700$ at a discount of $10\%$ on the printed price to a retailer. The retailer, in turn, raises the printed price of the article by $15\%$ and sells it for Rs. $3,657$ which includes Sales Tax on the new marked price. Find: (i) the rate of Sales Tax, (ii) the profit, as per cent, made by the retailer.

Question 7 :
The number of members of a club is increased by $10\%$ every year. If the initial number of members is $500$, then what will be the number at the beginning of the third year?

Question 8 :
The population of a village in Karnataka increases by 5% every year. If its present population is 24,000, find the population after 3 years

Question 10 :
If the simple interest on a sum of money for 2 years at5% per annum is Rs. 50, what is the compound intereston the same sum at the same rate and for the sametime?

Question 11 :
Find the compound Interest on $Rs\ 32000$ at $20\%$per annum for $1$ year, compounded half yearly.

Question 12 :
Which tax is paid to government for the sales of certain goods and services?<br>

Question 13 :
Find the amount of $Rs. 800$ at compound interest in $2\dfrac {1}{2}$ years at $5$ p.c

Question 14 :
The interest computed on both the principal and any interest earned is called _____ interest.

Question 15 :
The surface area of a solid is the.......of the areas of its faces.