For the following questions answer them individually
The radius of a circle is increased by 35 percent. What will be the percentage increase in its area?
Evaluate: $$20 - 3 \times (4 + 1) \div 2$$.
The marked price of a crockery was Rs 15400/- and was offering a discount of 12%. Harsh bargained with the shopkeeper to get a successive discount and brought the crockery for Rs 10164/- What was the second discount offered by the shopkeeper?
If Manish can complete 3/5 of a work in 48 days, then Manish will complete 1/5 of the same work in how many days?
What is the value of $$42 \div 3 \times [7 + (42 \div 6)] \div 2 of 7$$?
40 percent of the cost price of an article is equal to the 30 percent of its selling price. What is the profit percentage?
A shirt is bought for $30 and sold for $40. Find the profit percentage.
One third part of a certain journey is covered at the speed of 24 km/hr, one fourth part at the speed of 36 km/hr and the rest part at the speed of 60 km/hr. What will be the average speed for the whole journey?
M is two times as efficient as N. M can complete a work in 66 days less than N. If both of them work together, then in how many days will the same work be completed?
The compound interest (compounding annually) on a sum of money for the first year is Rs. 600, and for the second year, it is Rs. 660. Fiud the rate of interest per annum.