1.A producer of tea blends two varities of tea from two gardens one costing Rs.24 per kg and another Rs 28 per kg in the ratio 6:2.If he sells the blended variety at Rs 30 per kg what is profit or ioss percentage?
2.6 men can do a piece work in 4 days. 8 boys can also do the same work in 6 days .In how many days 3 men and 6 boys together will finish the
3.A train crosses a pole in 15s .it also crosses a platform which length is 200m in 90s.then find length of the train and its speed.
(a)620m and 45m/s
(b)520m and 36m/s
(c)450m and 60m/s
(d)540m and 36m/s
4.A box contains 4 red ball and 6 green ball.2 balls are picked random what is the probability that one of them is red and another is green
5.The diameter of the base of a right circular cylinder is 28 cm,while its length is 60 cm . find the total surface area of the cylinder.
6.what is the slope of the line perpendicular to the line passing through the points (6,5) and( 2,-3).
7.In a town, 90% of the population is literate in whichthe men and women are in the ratio of 5:4,respectively if the number of literate men is 2.5 lakh,what is the total poulation of the town?
8.The area of a rectangle is 2.25 times the area of a square . the length of the rectangle is 4 times the breadth.the side of the square is 20cm .what is the perimeter of the rectangle.
9 If 5sinX+12cosX=12.Then what is the value of(5cosX-12sinX).
10.If the differece between the compound interest and simple interest on a certain sum of money for 2 year at 25% per annum is 50 ,then the sum will be.