A car gives a mileage of 20 km per liter of petrol when driven at a constant speed of 50 kmph but the mileage decreases by 10% when driven at a speed of 70 kmph. How many km can the car travel with 12 liters of petrol if it travels a speed of 70 kmph?

Related Mcqs:

1. How many liters of oil at Rs.40 per liter should be mixed with 240 liters of a second variety of oil at Rs.60 per liter so as to get a mixture whose cost is Rs.52 per liter?

   A. 120 liters
   B. 180 liters
   C. 110 liters
   D. 160 liters

2. Barkat is travelling on his cycle and has calculated to reach point A at 2 P.M. if he travels at 10 kmph; he will reach there at 12 noon if he travels at 15 kmph. At what speed must he travel to reach A at 1 P.M. ?

   A. 8 kmph
   B. 11 kmph
   C. 12 kmph
   D. 14 kmph

3. A man travels from A to B at a speed of 30 kmph and returns with a speed of 60 kmph. What is the average speed of the man?

   A. 47.5
   B. 50
   C. 45
   D. 40

4. How much water must be added to a bucket which contains 40 liters of milk at the cost price of Rs.3.50 per liter so that the cost of milk reduces to Rs.2 per liter?

   A. 25 liters
   B. 28 litres
   C. 30 liters
   D. 35 liters

5. A drink vendor has 80 liters of Maaza, 144 liters of Pepsi and 368 liters of Sprite. He wants to pack them in cans, so that each can contains the same number of liters of a drink, and doesn’t want to mix any two drinks in a can. What is the least number of cans required?

   A. 35
   B. 37
   C. 42
   D. 30

6. The speed of a boat in upstream is 60 kmph and the speed of the boat downstream is 80 kmph. Find the speed of the boat in still water and the speed of the stream?

   A. 70, 10 kmph
   B. 35, 27 kmph
   C. 50, 60 kmph
   D. 45, 55 kmph

7. Danish his car at a speed of 120 kmph for the first 2 hours and then at a speed of 100 kmph for the next half an hour. Find the distance covered by him during the entire journey.

   A. 300 km
   B. 290 km
   C. 250 km
   D. 240 km

8. In a race, a car travelled at a speed of 150 kmph. If it had travelled at 180 kmph, it would have completed the race before 3 minutes. Find the length of the track.

   A. 50 km
   B. 45 km
   C. 40 km
   D. 30 km

9. A merchant has three different types of milk: 435 liters, 493 liters and 551 liters. Find the least number of casks of equal size required to store all the milk without mixing.

   A. 51
   B. 61
   C. 47
   D. 45

10. The price of petrol is increased by 25 %. By how much percent a car owner should reduce his consumption of petrol. So that expenditure on petrol would not be increased?

    A. 25 %
    B. 30 %
    C. 50 %
    D. 20 %