CAT प्रश्न और उत्तर का अभ्यास करें

प्र: An amount doubles itself in 15 years. what is the rate of interest ? 1767 0

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    7.85 %
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  • 2
    9.41%
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  • 3
    6.66 %
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    गलत
  • 4
    4.21 %
    सही
    गलत
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उत्तर : 3. "6.66 %"
व्याख्या :

Answer: C) 6.66 % Explanation: Let the principle be Rs. PAs the amount double itself the interest is Rs. P tooSo P = P x r x 15/100=> r = 100/15 = 20/3 % = 6.66 %.

प्र: Economic resources are also called 1767 0

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उत्तर :
व्याख्या :

Economic resources include land, labour, capital and entrepreneurship.  Entrepreneurship is also considered an economic resource because individuals are responsible for creating businesses and moving economic resources in the business environment.   These economic resources are also called as Factors of production.

प्र: Nine different letters of alphabet are given, words with 5 letters are formed from these given letters. Then, how many such words can be formed which have at least one letter repeated ? 1767 0

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    43929
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    59049
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    15120
    सही
    गलत
  • 4
    0
    सही
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उत्तर : 1. "43929"
व्याख्या :

Answer: A) 43929 Explanation: Number of words with 5 letters from given 9 alphabets formed = 95   Number of words with 5 letters from given 9 alphabets formed such that no letter is repeated is = 9P5   Number of words can be formed which have at least one letter repeated =  95 - 9P5   = 59049 - 15120   = 43929

प्र: Light from the sun reaches us in nearly 1767 0

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    5 min
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    4.30 hrs
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  • 3
    8 min
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  • 4
    5.30 hrs
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उत्तर : 3. "8 min"
व्याख्या :

Answer: C) 8 min Explanation: The light from the sun takes about 8 minutes to reach the Earth after it has been emitted from the sun's surface.   The time it takes for light to reach planets in our Solar System varies from about 3 minutes for Mercury to about 5.3 hours for Pluto.

प्र: The payment per hour for a daily-wages employee is increased by 33.33 and the working time is reduced by 33.33%. What is the percentage change in the employee's income ? 1766 0

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    11.11% decrease
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  • 2
    21.11% increase
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  • 3
    11.11% increase
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  • 4
    21.11% decrease
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उत्तर : 1. "11.11% decrease"
व्याख्या :

Answer: A) 11.11% decrease Explanation: If earlier he is getting Rs. 1  per hr and working for 1 hr, income = Rs. 1Now he is getting Rs 1.3333 per hr and working for 0.66667 hrs Then income for 0.66667 hrs = Rs. 0.8889. If payment per hr is increased by 33.33 %  and working hours dereased by 33.33%, then 11.11 % decrease in income.

प्र: What Room can Nobody Enter? 1766 0

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    War room
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  • 2
    Spare room
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  • 3
    Escape room
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  • 4
    Mushroom
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उत्तर : 4. "Mushroom"
व्याख्या :

Answer: D) Mushroom Explanation: The Room can Nobody Enter is a Mushroom.

प्र: Three friends had dinner at a restaurant. When the bill was received, Akshitha paid 2/3 as much as Veena paid and Veena paid 1/2 as much as Lasya paid. What fraction of the bill did Veena pay ? 1766 0

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    11/3
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  • 2
    2/13
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  • 3
    3/11
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  • 4
    13/4
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उत्तर : 3. "3/11"
व्याख्या :

Answer: C) 3/11 Explanation: Let Veena paid x,so Akshitha paid 2x/3 , and Lasya paid 2x,So total bill paid is given byx+(2x/3) +2x = 1, we geti.e. x = 3/11

प्र: A shopkeeper sells two articles at Rs.1000 each, making a profit of 30% on the first article and a loss of 20% on the second article. Find the net profit or loss that he makes ? 1766 0

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    0.85 %
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  • 2
    0.95 %
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  • 3
    1.0 %
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  • 4
    1.3 %
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उत्तर : 2. "0.95 %"
व्याख्या :

Answer: B) 0.95 % Explanation: SP of first article = 1000Profit = 30%CP = (SP)x[100/(100+P)] = 10000/13 SP of second article = 1000Loss = 20%CP = (SP)x[100/(100-L)] = 5000/4 = 1250 Total SP = 2000 Total CP = 10000/13 + 1250 = 2019.23 CP is more than SP, he makes a loss. Loss = CP-SP = 2019.23 - 2000 = 19.23Loss Percent = [(19.23)/(2019.23)]x100 = 0.95 %.

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