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Empty tank = 30% Fill tank = 70% 70 = 210 liters 1-3 30 = 3×30= 90 liters
A car travels 300 km at a speed of 60 km/h and another 200 km at a speed of 80 km/h. Find the approximate average speed of the car for the entire journey.
A man invested $4,800 in a scheme offering compound interest compounded annually. If the difference between the interest earned in the 2nd year and the ...
A vessel contains a mixture of milk and water in the ratio 3: 2. If 10 liters of the mixture are taken out and replaced with 10 liters of water, the rat...
The conjugate of z = 2 − 5i is:
In a circle, two tangents PA and PB are drawn from an external point P such that the angle ∠ APB = 60°. If the radius of the circle is 10 cm, find th...
Find the median of the set of the numbers given below:
13,11,9,7,15,14,12,8,5,9,10
39% of 7800 – 37% of 7400 + 33.33% of 3600 = ?
Two pipes A and B can fill a tank in 15 hours and 20 hours, respectively. Another pipe C can empty the tank in 30 hours. If all three pipes are opened t...
