ECAT Math MCQs with Answers – Entry Test Practice – Page 18

Question 341 Numbers

In a party each member invited takes a number to be served. If the first member took the number 32 and the last member took number 520. How many members were there that day?

Correct answer D. 489

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Question 342 Numbers

If y and z are integers and the sum of yz and z is odd which of the following is true? (I) y and z are even (II) y is odd and z is even (III) y is even and z is odd?

Correct answer D. III only

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Question 343 Numbers

If an integer R leaves a remainder 5 when it is divided by 8 all are true except?

Correct answer E. When multiplied by 3 R always gives a result which is completely divisible by 2.

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Question 344 Numbers

If the division of 2 consecutive odd integers gives 0.71 as the result what is the greater of the two?

Correct answer C. 7

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Question 345 Numbers

If the sum of five different prime numbers is an even number what is the smallest of the five?

Correct answer C. 2

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Question 346 Numbers

Which of the following is true?

Correct answer B. 45 − 40 = 5

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Question 347 Numbers

(10/20) x 10 x (20/20) + (10/20) x 10 x (20/20) =?

Correct answer B. 100?10

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Question 348 Numbers

45 / 12+45 / 12+45 / 12 =?

Correct answer B. 11.25

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Question 349 Numbers

√(6400/22500) =?

Correct answer C. 8?15

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Question 350 Numbers

Which is closest to 0.5?

Correct answer C. 1?2

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Question 351 Numbers

(121×4+3) / (1÷10) ≠?

Correct answer B. 4870

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Question 352 Alligation or Mixture

6 parts of milk are mixed with one part of water 5 litres of water are added to the mixture and it is then found to certain 5 times as much milk as water. How many litres of milk were there in the mixture first?

Correct answer D. None of these

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Question 353 Alligation or Mixture

One man add 3 litres of water to 12 litres of milk and another 4 litres of water to 10 litres of milk compare the amount of milk in the two mixtures?

Correct answer B. 28?25

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Question 354 Alligation or Mixture

In a mixture of 35 litres the ratio of milk and water is 4:1. If 7 litres of water is added to the mixture. Then the ratio of milk and water in the resulting mixture will be come?

Correct answer A. 2?1

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Question 355 Alligation or Mixture

A producer blends two qualities of rice one costing Rs: 12.50 per kg and other costing Rs: 14:00 per kg in the ration of 4:5. Find the profit percent if he sells the mixture at the rate of Rs: 16 per kg?

Correct answer C. 20%

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Question 356 Alligation or Mixture

A shopkeeper mixes two kinds of sugar. One costing Rs: 3.50 kg and the other Rs: 2.25 Kg so that the price of the mixture is Rs: 2.75/kg. The ration of the first kind of the sugar to that of the second must be?

Correct answer C. 2?3

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Question 357 Alligation or Mixture

A jar contains three parts of pure milk and one part of water. How much of the mixture must be drawn and water substituted in order that the result mixture may be half milk and half water?

Correct answer C. 1/3rd

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Question 358 Alligation or Mixture

The ratio in which the two quantities of rice at Rs: 6 and Rs: 4 per kg be mixed respectively in order the mixture may cost Rs: 4.80/kg is?

Correct answer A. 2?3

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Question 359 Alligation or Mixture

If 4 Kg rice of superior quality of Rs: 6 a Kg be mixed with 6 kg. Rice at Rs: 4 per Kg of inferior quality the price of the mixture per kg shall be?

Correct answer B. Rs: 4.80

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Question 360 Alligation or Mixture

One liquid contains 20% of water another Contains 35% of water. A glass filled with 5 parts of first liquid and 10 parts of second the percentage of water in the new mixture?

Correct answer B. 30%

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