A mixture of 70 litres of milk and water contains 10% water. How much water must be added to make water 12?
Correct answer A. 2
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ECAT Math MCQs
Page 19 of ECAT Math multiple-choice questions with answers. Tap an option to check yourself.
Page 19 of 36
In what proportion must a man mix milk at Rs: 11 per liter with milk at Rs: 6 per liter so the mixture be worth Rs: 8 per liter?
Correct answer A. 2?3
In what proportion must a grocer mix rice at Rs: 1.2 per kg and Rs: 1.44 per kg so as to make a mixture worth Rs: 1.3 per kg?
Correct answer B. 7?5
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The percentage of water in 20 litres of adulterated milk is 10. The quantity of water to be added to it to increase the %age of water to 25% is?
Correct answer A. 4 litres
18 men can eat 20 kg of rice in 3 days. How long will 6 men take to eat 40 kg of rice?
Correct answer B. 18
140 pills are sufficient for 10 patients for a week. How long will 200 pills last if there are 30 patients?
Correct answer A. 3 1?3 days
In a fort there is sufficient food for 600 men for a month. If 400 more men arrive the fort then how long the food is sufficient for now?
Correct answer B. 18 days
If 25 men can eat 150 kg of wheat in 30 days then 45 men can eat 450 kg of wheat in how many days?
Correct answer B. 50 days
In a hostel mess there is enough food provisions for 1200 boarders for a month. After 15 days half of them leave due to vacations. How long will the food provisions now last?
Correct answer B. 30 days
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Certain quantity of food is sufficient for certain number of men for 13 days. After 1 day 2/5 of them desert how long will the food now last?
Correct answer A. 20 days
A group of people has provisions for 29 days for 24 men. If after 4 days 1/6 of them desert then food will last for?
Correct answer C. 30 days
In a fort the food was sufficient for two months. After half a month?
Correct answer D. 50 days
15 cattle can graze a field in 20 days 20 cattle can graze 3 such field in how many days?
Correct answer B. 45
5kg food is consumed by 50 chickens in 2 days. 60 chickens will consume how much food in 6 days?
Correct answer D. 18 kg
At any army camp the provisions were stored for 40 days but ten days after the no. of soldiers become double. Now the food lasts for x days. What is x?
Correct answer D. 15
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A family of 12 people had enough provision for 15 days. But 3 guests came for 2 days. How long the provisions will last for?
Correct answer D. 12.5
At an inn there are provisions sufficient for 20 days for 40 people. At the end of every 10 days 5 people leave off. How many days the provision will be sufficient for new?
Correct answer D. none
A garrison has provision for 30 days for certain men. If 2/3 of them do not attend the mess then the food will last for?
Correct answer B. 90 days
A garrison has provisions for 40 days. At the end of 5 days half of the men left the garrison. How long the food will last for?
Correct answer C. 70 days
A camp has provision for 9 days for 500 men. At the end of 3 days 100 more men were admitted. How long will the food now last?
Correct answer B. 5 days