Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें

प्र: Sneha’s weight is 140% of Veena’s weight. Rina’s weight is 90% of Sana’s weight. Sana weighs twice as much as Veena. If Sneha’s weight is x% of Rina’s weight, then x is equal to: 1798 0

  • 1
    596/9
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  • 2
    605/9
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  • 3
    645/9
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  • 4
    700/9
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उत्तर : 4. "700/9"
व्याख्या :

Answer: D) 700/9 Explanation: Let Veena's weight = 1 kg Sana's weight = 2 kg Sneha's weight = 1.4 kg Rina's weight = 1.8 kg Now,according to the given data in the question, 1.8x100 = 1.4   x = 1.4 × 1001.8 = 7009 = 77 79.

प्र: The number of ways in which 8 distinct toys can be distributed among 5 children? 4106 0

  • 1
    5P8
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  • 2
    5^8
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  • 3
    8P5
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  • 4
    8^5
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उत्तर : 2. "5^8"
व्याख्या :

Answer: B) 5^8 Explanation: As the toys are distinct and not identical, For each of the 8 toys, we have three choices as to which child will receive the toy. Therefore, there are 58 ways to distribute the toys.   Hence, it is 58 and not 85.

प्र: Which is the next number in the sequence: 1, 3, 6, 11, 20, 37, ?? 7130 0

  • 1
    49
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  • 2
    56
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  • 3
    64
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  • 4
    70
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उत्तर : 4. "70"
व्याख्या :

Answer: D) 70 Explanation: Here the given series is 1, 3, 6, 11, 20, 37, ??, and the logic behind the series is 1 x 2 + 1 = 3 3 x 2 + 0 = 6 6 x 2 + (-1) = 11 11 x 2 + (-2) = 20 20 x 2 + (-3) = 37 37 x 2 + (-4) = 70   Hence, the next number in the given series is 70.

प्र: What time will it be 18 hours from now in India, if in the USA it is 4:15 AM? (Hint : IST = US + 9:30 hrs) 2549 0

  • 1
    1:45 in the afternoon
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  • 2
    7:45 in the evening
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  • 3
    7:45 in the next morning
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  • 4
    1:45 in the next morning
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उत्तर : 3. "7:45 in the next morning"
व्याख्या :

Answer: C) 7:45 in the next morning Explanation: We know that the time difference between India and USA is 9 hrs 30 min. India is 9:30 hrs ahead of USA. Time in India = 4:15 + 9:30 = 13:45 PM. Required Time after 18 hrs = 13:45 + 18 hrs = 7:45 AM.   Hence it is 7:45 AM on the next morning.

प्र: Find the odd one out? 6, 3, 3, 4.5, 10 2374 0

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    3
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  • 2
    4.5
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  • 3
    6
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  • 4
    10
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उत्तर : 4. "10"
व्याख्या :

Answer: D) 10 Explanation: Here the given number series is 6, 3, 3, 4.5, 10 The odd one in the given series is 10 The pattern it follows is 6 6 x 0.5 = 3 3 x  1  = 3 3 x 1.5 = 4.5 4.5 x 2 = 9   Hence, the odd number is 10.

प्र: Find the area of the square whose side is equal to the diagonal of a rectangle of length 3 cm and breadth 4 cm. 1097 0

  • 1
    25 sq.cm
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  • 2
    16 sq.cm
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  • 3
    9 sq.cm
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  • 4
    4 sq.cm
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उत्तर : 1. "25 sq.cm"
व्याख्या :

Answer: A) 25 sq.cm Explanation: Given length of the rectangle = 3 cm Breadth of the rectangle = 4 cm Then, the diagonal of the rectangle D = 32 + 42 = 25 = 5 Then, it implies side of square = 5 cm We know that Area of square = S x S = 5 x 5 = 25 sq.cm.

प्र: Avinash gave a sum of 5400 at the simple rate of interest of 8% to Rajeev for 4 years and Rajeev gave this amount to Chanukya at the rate of 6% for 4 years. Find how much extra amount has to be paid by Rajeev to Avinash after 4 years? 1404 0

  • 1
    Rs. 364
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  • 2
    Rs. 432
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  • 3
    Rs. 498
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  • 4
    Rs. 554
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उत्तर : 2. "Rs. 432"
व्याख्या :

Answer: B) Rs. 432 Explanation: Here Avinash gave to Rajeev and Rajeev gave the same to Chanukya Principal amount and Time is same but the only difference is Rate of interest. Rajeev took @ 8% and gave it to Chanukya @ 6% Here the difference in interest rate = 2% 2% of 5400 should be the extra amount paid by Rajeev to Avinash Required amount = 2 x 5400 x 4100 = 432   Hence, Rs. 432 is the extra amount has to be paid by Rajeev to Avinash after 4 years.

प्र: P, Q, and R can do a job in 12 days together.  If their efficiency of working be in the ratio 3 : 8 : 5, Find in what time Q can complete the same work alone? 1870 0

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    36 days
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  • 2
    30 days
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  • 3
    24 days
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  • 4
    22 days
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उत्तर : 1. "36 days"
व्याख्या :

Answer: A) 36 days Explanation: Given the ratio of efficiencies of P, Q & R are 3 : 8 : 5 Let the efficiencies of P, Q & R be 3x, 8x and 5x respectively They can do work for 12 days. => Total work = 12 x 16x = 192x   Now, the required time taken by Q to complete the job alone = 162x8x = 24 days.

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