Question
As an air bubble ascends from the bottom of a lake to
the surface, what happens to its size?Solution
As an air bubble rises towards the surface of a lake, it expands due to the decrease in hydrostatic pressure.
The ratio of liquor and soda in a mixture of 50 liters is 3:2. How much soda should be mixed to make the ratio 6:7?
If a:b:c = (1/6) :(1/8) :(1/5) , and a + b + c = 236, then find the value of (c - a) .
Cost of two types of pulses is Rs.25 and Rs, 30 per kg, respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the pr...
In a jar initially containing 'm' liters of pure milk costing Rs. 20 per liter, 50% of the milk is taken out, and honey is added to the remaining milk. ...
In what ratio coffee at 320 Rs/kg should be mixed with the coffee at 370 Rs/kg so that after mixture its rate become 335 Rs/kg if the quantity of 1st ty...
The average number of taxis of three colours (black, white and yellow) in a taxi stand is 130. The number of black taxis is 70 more than that of yellow ...
A vessel contains 50 liters of a solution with 40% acid. 10 liters of this solution are removed and replaced with a solution containing 70% acid. The pr...
A shopkeeper has 68 kg rice a part of it, he sells at the profit of 44% and rest at loss of 24% and he get the loss of 16% so what is the quantity sold ...
Find the smallest number which when successively divided by 4, 7 and 5 will give the remainder 2, 1, 3.
A vessel contains some milk .7 liter of the milk was taken out of the vessel and replaced with 7 liter of water and again 7 liter of mixture was taken o...
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