Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें

नवीनतमलोकप्रियमूल्यांकनपेज देखें 47 of 159कुल सवाल 1267 जॉइन Examsbook

प्र: Sushma joins a job at 20 yrs. First 3 years salary is 10,000 p.a. Afterwards every year increment of 2,000 per year for 10 years. Then salary becomes constant till retirement. At retirement average salary is 25,000. (throughout career). At what age Sushma retires ? 2362 0

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    50 yrs
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  • 2
    47 yrs
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  • 3
    45 yrs
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  • 4
    42 yrs
    सही
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उत्तर : 1. "50 yrs"
व्याख्या :

Answer: A) 50 yrs Explanation: Let age of retirement = Sso according to the given condition 25000(x-20)=10000 x 3 + 12000 + 14000 + 16000 + 18000 + 20000 + 22000 + 24000 + 26000 + 28000 + 30000 + 30000(S-33)= 30000 + 210000 + 30000S-990000= 30000S - 750000or 25000S - 500000 = 30000x - 750000or 5000x = 250000or S = 50 yrs.

प्र: A man covers a distance of 1200 km in 70 days resting 9 hours a day, if he rests 10 hours a day and walks with speed 1½ times of the previous in how many days will he cover 840 km ? 2360 0

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    39 days
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  • 2
    37 days
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  • 3
    35 days
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  • 4
    33 days
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उत्तर : 3. "35 days"
व्याख्या :

Answer: C) 35 days Explanation: Distance d = 1200kmlet S be the speed he walks 15 hours a day(i.e 24 - 9)so totally he walks for 70 x 15 = 1050hrs. S = 1200/1050 => 120/105 = 24/21 => 8/7kmph given 1 1/2 of previous speedso 3/2 * 8/7= 24/14 = 12/7 New speed = 12/7kmph Now he rests 10 hrs a day that means he walks 14 hrs a day. time = 840 x 7 /12 => 490 hrs=> 490/14 = 35 days So he will take 35 days to cover 840 km.

प्र: A number increased by 30% gives 390. The number is 2356 0

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    180
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  • 2
    300
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  • 3
    480
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  • 4
    260
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उत्तर : 2. "300"
व्याख्या :

Answer: B) 300 Explanation: Let the number be 'N'Given N + 30N/100 = 390=> 130N/100 = 390=> N = 390 x 10/13=> N = 300.

प्र: Find the missing number in the given number series? 514, 470, ?, 415, 404 2352 0

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    441
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  • 2
    437
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  • 3
    426
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  • 4
    420
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उत्तर : 2. "437"
व्याख्या :

Answer: B) 437 Explanation: Given number series is 514   470   ?   415   404       Here the pattern it follows is   514   514 - 44 = 470   470 - 33 = 437   437 - 22 = 415   415 - 11 = 404   Hence, the missing number in the given number series is 437.

प्र: A contractor undertook to complete a piece of work in 120 Days and employed 140 men upon it. At the end of 66 days only half of the work was done,so he put on 25 extra men. By how much time did he exceed the specific time ? 2346 0

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    2 days
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  • 2
    3 days
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  • 3
    4 days
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  • 4
    5 days
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उत्तर : 1. "2 days"
व्याख्या :

Answer: A) 2 days Explanation: work done=total number of person x number of days;half of work done = 140 x 66;For half of remaining work 25 extra men are added.Therefore, total men for half work remaining = 140 + 25 = 165;Let 2nd half work will be completed in K days;140 x 66 = 165 x KK = 122;Hence, extra days => 122-120 = 2days.

प्र: Find the next number in the given number series? 96, 95, 87, 78, ? 2344 0

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    64
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  • 2
    57
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  • 3
    29
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  • 4
    14
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उत्तर : 4. "14"
व्याख्या :

Answer: D) 14 Explanation: The given number series is 96, 95, 87, 78, ?  It follows a pattern that, 9696 - 12 = 9595 - 23 = 95 - 8 = 8787 - 32 = 87 - 9 = 7878 - 43 = 78 - 64 = 14   Hence, the next number in the given number series is 14.

प्र: When Raj Tarun was born, his father was 32 years older than his brother and his mother was 25 years older than his sister. If Raj Tarun's brother is 6 years older than Raj Tarun and his mother is 3 years younger than his father, how old was Raj Tarun's sister when Raj Tarun was born ? 2343 0

  • 1
    5
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  • 2
    10
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  • 3
    15
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  • 4
    8
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उत्तर : 2. "10"
व्याख्या :

Answer: B) 10 Explanation: Raj Tarun's age = 0 when he was born.Then, given his brother is 6 years old.Then his father is 6 + 32 = 38 when Raj Tarun was bornAnd his mother is 3 years yonger than his father => so his mother was 35 years old when Raj Tarun was bornand his sister is 25 year younger than his mother so Raj Tarun's sister was 10 years old when Raj Tarun was born.

प्र: A person takes a loan of Rs. 200 at 5% simple interest. He returns Rs.100 at the end of one year. In order clear his dues at the end of 2 years, he would pay : 2340 0

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    Rs. 100
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  • 2
    Rs. 105
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  • 3
    Rs. 115
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  • 4
    Rs. 110
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उत्तर : 3. "Rs. 115"
व्याख्या :

Answer: C) Rs. 115 Explanation: Amount to be paid = Rs.100+200×5×1100+100×5×1100= Rs. 115.

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