Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें
8प्र: सिमरन ने 50,000 रूपये का निवेश कर एक सॉफ्टवेयर का व्यवसाय शुरू किया। 6 महीने बाद नंदा ने 80,000 रूपये की पूंजी लगाकर साझेदार हो गयी। यदि 3 साल बाद उन्होंने 24,500 रूपये का लाभ कमाया तो सिमरन का लाभ में हिस्सा क्या होगा? 3331 05b5cc731e4d2b4197774f7f1
5b5cc731e4d2b4197774f7f1- 112,421false
- 29,423false
- 311,600false
- 410,500true
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 4. "10,500"
व्याख्या :
Answer: D) 10,500 Explanation: The ratio of their investments:50000x36 : 80000x30 = 3 : 4Simran's share of profit = (24500x3/7) = Rs.10,500.
प्र: एक स्कूल में लड़कों और लड़कियों का अनुपात क्रमशः 4ः6 है। यदि लड़कों की संख्या में 200 की वृद्धि की जाती हैं तो यह अनुपात 5ः6 हो जाता है। स्कूल में लड़कियों की संख्या कितनी है? 2275 05d1b06bf1fc62311c773685b
5d1b06bf1fc62311c773685b- 11200true
- 2800false
- 31000false
- 4500false
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 1. "1200"
प्र: A की क्षमता B से तीन गुणी है दोनों मिलकर एक काम 15 दिन में कर सकते हैं तो अकेला B उसी काम को कितने दिन में करेगा? 2751 05d1488909aeb0a08f1e67455
5d1488909aeb0a08f1e67455- 140false
- 260true
- 330false
- 420false
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 2. "60"
प्र: From a tank of petrol, which contains 200 litres of petrol, the seller replaces each time with kerosene when he sells 40 litres of petrol(or its mixture). Everytime he sells out only 40 litres of petrol(pure or impure). After replacing the petrol with kerosen 4th time, the total amount of kerosene in the mixture is 27780 25b5cc7d7e4d2b4197775151a
5b5cc7d7e4d2b4197775151a- 181.92Lfalse
- 296Lfalse
- 3118.08Ltrue
- 4None of thesefalse
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 3. "118.08L"
व्याख्या :
Answer: C) 118.08L Explanation: The amount of petrol left after 4 operations = 200 × 1-402004 = 200 × 454 = 200 × 256625 = 81.92 litres Hence the amount of kerosene = 200 - 81.92 = 118. 08 litres
प्र: From a container of wine, a thief has stolen 15 litres of wine and replaced it with same quantity of water. He again repeated the same process. Thus, in three attempts the ratio of wine and water became 343 : 169. The initial amount of wine in the container was: 13731 15b5cc7d7e4d2b41977751510
5b5cc7d7e4d2b41977751510- 175 litresfalse
- 2100 litresfalse
- 3150 litresfalse
- 4120 litrestrue
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 4. "120 litres"
व्याख्या :
Answer: D) 120 litres Explanation: wine(left)wine(added) = 343169 It means wine(left)wine(initial amount) = 343512 (since 343 + 169 = 512) Thus, 343x = 512x1 - 15k3 343512 = 783 = 1 - 15k3 1-15k=78=1-18 Thus the initial amount of wine was 120 liters.
प्र: 5 men and 4 women are to be seated in a row so that the women occupy the even places . How many such arrangements are possible? 2043 15b5cc7d1e4d2b4197775129f
5b5cc7d1e4d2b4197775129f- 12880true
- 21440false
- 3720false
- 42020false
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 1. "2880"
व्याख्या :
Answer: A) 2880 Explanation: There are total 9 places out of which 4 are even and rest 5 places are odd. 4 women can be arranged at 4 even places in 4! ways. and 5 men can be placed in remaining 5 places in 5! ways. Hence, the required number of permutations = 4! x 5! = 24 x 120 = 2880
प्र: How many 7 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 2, 4? 2880 05b5cc7d1e4d2b41977751295
5b5cc7d1e4d2b41977751295- 1120false
- 2360true
- 3240false
- 4424false
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 2. "360"
व्याख्या :
Answer: B) 360 Explanation: There are 7 digits 1, 2, 0, 2, 4, 2, 4 in which 2 occurs 3 times, 4 occurs 2 times. Number of 7 digit numbers = 7!3!×2! = 420 But out of these 420 numbers, there are some numbers which begin with '0' and they are not 7-digit numbers. The number of such numbers beginning with '0'. =6!3!×2! = 60 Hence the required number of 7 digits numbers = 420 - 60 = 360
प्र: In a G - 20 meeting there were total 20 people representing their own country. All the representative sat around a circular table. Find the number of ways in which we can arrange them around a circular table so that there is exactly one person between two representatives namely Manmohan and Musharraf. 3107 05b5cc7d1e4d2b4197775128b
5b5cc7d1e4d2b4197775128b- 12 x (17!)false
- 22 x (18!)true
- 3(3!) x (18!)false
- 4(17!)false
- उत्तर देखें
- Workspace
- SingleChoice
उत्तर : 2. "2 x (18!)"
व्याख्या :
Answer: B) 2 x (18!) Explanation: A person can be chosen out of 18 people in 18 ways to be seated between Musharraf and Manmohan. Now consider Musharraf, Manmohan, and the third person, sitting between them, as a single personality, we can arrange them in 17! ways but Musharraf and Manmohan can also be arranged in 2 ways. Required number of permutations = 18 x (17!) x 2 = 2 x 18!