The minimum value of a x + (b/x) is = 2 
So the minimum value of 9 cos 2 θ + 36 sec 2 θ = 2 = 2 = 2 18 =36
The Price of 1 litre pure milk is Rs 50. By adding some water in it and selling the mixture at Rs 60 one gets 25% profit, then find the ratio of milk a...
A sum of ₹4,360 was to be divided among A, B, C, and D in the ratio 3:4:5:8, but it was divided in the ratio 1/3:1/4:1/5:1/8. Was divided by mistake: ...
In what ratio coffee at 265 Rs/kg should be mixed with the coffee at 305 Rs/kg so that after mixture its rate become 280 Rs/kg if the quantity of 1st ty...
In what ratio rice at 48 Rs/kg should be mixed with the rice at 34 Rs/kg so that selling mixture at Rs 46 per kg gives the profit of 15% if the quantity...
A train overtakes a bus traveling at a speed of 5 m/s in 8 seconds. If the length of the train is 160 meters, determine the speed...
In the Reebok factory, there are two units of workers, I and II, with a strength ratio of 2:1. The ratio of male to female in Unit I is 3:1, and in Unit...
If (x - 5)2 - (x + 5)2 = 0, then what is the value of 'x'?
The ratio of the incomes of Vineet and Vidya is 12:5 respectively. Vineet saves 25% of his income while Vidya saves 20% of his income. The sum of their ...
Cost of two types of pulses is Rs.16 and Rs, 21 per kg, respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the pr...
A milk vendor has 93 litres of cow pure milk, 62 litres of toned milk and 124 litres of double toned milk. If he wants to pack them in cans so that each...
