For the following questions answer them individually
An amount was lent for one year at the rate of 10% per annum compounding annually had the compounding been done half yearly, the interest would have increased by 80. What was the amount (in Rs) lent?
The line chart given below represents the sales (in 00) of trousers and shirts for five months.
Total sale of shirts for five months is how much percent more than the total sale of trousers for five months?
For the following questions answer them individually
The ratio of curved surface area of two cones is 1 : 9 and the ratio of slant height of the two cones is 3 : 1. What is the ratio of the radius of the two cones?
What is the total surface area (in cm2) of a cylinder having radius of base as 7 cm and height as 15 cm?
A cylindrical well of height 40 metres and radius 7 metres is dug in a field 56 metres long and 11 metres wide. The earth taken out is spread evenly on the field. What is the increase in the level of the field?
A cuboid of sides 5 cm, 10 cm and 20 cm are melted to form a new cube. What is the ratio between the total surface area of the cuboid and that of the cube?