For the following questions answer them individually
A man sold a radio and a TV set together for ₹20,850, thereby making a profit of 20% on the radio and 15% on the TV set. If he had sold them together for ₹21,450, then he would have made 15% profit on the radio and 20% profit on the TV set. The cost price of the TV set was:
The ratio of the sides of a rectangular field is 3 : 2 and its perimeter is 600 m. The area of a square field is 6 times the area of the rectangular field. The perimeter (in m) of the square field is:
Two men can complete as much work as 3 women can do in a certain time. Ten men and 6 women can complete a work in 5 days. If 4 men and 9 women work together, then in how many days will they be able to complete the same work?
What is the average of eight smallest even natural numbers which are NOT divisible by 3?
What is the total surface area of a hemispherical solid having radius 14 cm?
(Use $$\pi = \frac{22}{7}$$)
A car was sold for ₹66,000 at a gain of 10%. Had it been sold for ₹600 more, then the percentage gain would have been:
If the sum of the simple interest on ₹16,400 for 3 years at the rate of interest Rand that on ₹18,000 for 4 years at the same rate R is ₹10,302 , then the value of R will be:
A 320 m long train crosses a platform thrice its length in 90 seconds. What is the speed (in km/h) of the train?