Quantitative Aptitude Practice Question and Answer
8Q: In a mixture of 240 lt. water is 20% and rest is Milk. What quantity of mixture should be taken out and replaced with water so that water becomes 40%? 1911 05b5cc6bee4d2b4197774d98d
5b5cc6bee4d2b4197774d98d- 160 littrue
- 255 litfalse
- 345 litfalse
- 450 litfalse
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Answer : 1. "60 lit"
Explanation :
Answer: A) 60 lit Explanation:
Q: 5┬а+ 2 x 10 = 1910 05b5cc622e4d2b4197774b7e9
5b5cc622e4d2b4197774b7e9- 170false
- 220false
- 325true
- 452false
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Answer : 3. "25"
Explanation :
Answer: C) 25 Explanation: According to BODMAS rule, After multiplication only, addition is done. Hence, 5┬а+┬а2 x 10 = 5 + 20 = 25.
Q: If 35% of a number is 24 less than 50% of that number, then the number is ? 1904 05b5cc6e1e4d2b4197774eba2
5b5cc6e1e4d2b4197774eba2- 180false
- 2160true
- 3100false
- 4120false
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Answer : 2. "160"
Explanation :
Answer: B) 160 Explanation: Let the number be n. Then, 50% of n - 35% of n = 24 50/100 n - 35/100 n = 24 n = (24 x 100)/15 = 160.
Q: In a college, number of┬аboys is 75% of number of girls. Difference between boys and girls is 35. On a particular day 20% boys were absent, then find the number of boys those who present? 1904 05b5cc6b7e4d2b4197774d5e2
5b5cc6b7e4d2b4197774d5e2- 172false
- 284true
- 393false
- 481false
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Answer : 2. "84"
Explanation :
Answer: B) 84 Explanation: Ratio of girls and boys = 100% : 75% = 4:3 Difference is 1 unit = 35 So, 3 units = 35 x 3 = 105 If 20% absent, thatтАЩs mean 80% present. So, present boys = 80% of 105 =┬а80├Ч105100┬а=┬а84
Q: How many seconds will a 800 meter long train moving with a speed of 63 km/hr take to cross a man walking with a speed of 3 km/hr in the direction of the train ? 1903 05b5cc6dde4d2b4197774ea0f
5b5cc6dde4d2b4197774ea0f- 148true
- 252false
- 338false
- 442false
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Answer : 1. "48"
Explanation :
Answer: A) 48 Explanation: Here distance d = 800 mts speed s = 63 - 3 = 60 kmph = 60 x 5/18 m/s time t = 800x1860x5= 48 sec.
Q: At present, the ratio between the ages of Arun and Harish is 4:3. After 6 years, Arun's age will be 26 years. What is the age of Harish at present ? 1903 05b5cc6e1e4d2b4197774ebfc
5b5cc6e1e4d2b4197774ebfc- 115 yearstrue
- 216 yearsfalse
- 318 yearsfalse
- 421 yearsfalse
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Answer : 1. "15 years"
Explanation :
Answer: A) 15 years Explanation: Let the present ages of Arun and Harish be 4x and 3x years respectively. Then, 4x + 6 = 26 => x = 5 Harish's age = 3x = 15 years.
Q: In how many different ways can the letters of the word 'HAPPYHOLI' be arranged? 1902 05b5cc6a7e4d2b4197774ce0e
5b5cc6a7e4d2b4197774ce0e- 189,972false
- 290,720true
- 372,000false
- 481,000false
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Answer : 2. "90,720"
Explanation :
Answer: B) 90,720 Explanation: The given word HAPPYHOLI has 9 letters These 9 letters can e arranged in 9! ways. But here in the given word letters H & P are repeated twice each Therefore, Number of ways these 9 letters can be arranged is┬а 9!2!┬аx┬а2!┬а=┬а9┬аx┬а8┬аx┬а7┬аx┬а6┬аx┬а5┬аx┬а4┬аx┬а32┬а=┬а90,720┬аways.
Q: At an examination in which maximum marks are 500. K got 10% less than L, L got 25% more than M and M got 20% less than N. If K got 360 marks what percentage of marks was obtained by N ? 1902 05b5cc6c9e4d2b4197774dfab
5b5cc6c9e4d2b4197774dfab- 180true
- 287false
- 378false
- 476false
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Answer : 1. "80"
Explanation :
Answer: A) 80 Explanation: Let marks obtained by N = x M's marks = 0.80x L's marks = 1.25 (0.80x) K's marks = (0.90) (1.25) (0.80x) = 0.9x But 0.9x = 360 тЗТ x = 400 Percentage of Marks obtained by N = 400 x 100/500 = 80%