For the following questions answer them individually
A sum of Rs 20000 becomes Rs 32000 in 12 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 2 years?
N professes to lose 25% on rice and uses a weight of 750 gm instead of 1 kg. What is the total proļ¬t or loss percentage?
Two successive discounts of 12% and 20% are given by Rajat on a shirt. If the marked price of the shirt is Rs 500, then what is the value (in Rs) of discount?
If $$\sqrt{21}=4.58$$, then what is the simplified value of $$(8\sqrt{\frac{3}{7}}-3\sqrt{\frac{7}{3}})$$ ?
S does half as much work as T in 1/7 of the time taken by T. If together they take 21 days to complete a work, then how may days shall S take to complete that work alone?
A boy walking at the speed of 4 km/hr covers a certain distance in 6 hours 15 minutes. If he covers the same distance by cycle in 5 hours, then what is the speed (in km/hr) of the cycle?
The pie chart shows the number of tigers in all the tiger wild life sanctuaries in the country. Study the diagram and answer the following questions.
The measure of the central angle of the sector representing the number of tigers in Sanctuary E is ________ degrees.
If the average area occupied by each tiger in these sanctuaries is 90 sq km, then what is the total area (in 1000 sq km) of these sanctuaries?