CAT प्रश्न और उत्तर का अभ्यास करें

प्र: Velocitation is the tendency to 2326 0

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    be traveling at a speed that is faster than perceived
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    be traveling at a speed that is slower than perceived
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  • 3
    Both A & B
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  • 4
    None of the above
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उत्तर : 1. "be traveling at a speed that is faster than perceived"
व्याख्या :

Answer: A) be traveling at a speed that is faster than perceived Explanation: Velocitation is a phenomenon caused by driving for long periods at high speeds. A driver may experience velocitation when coming off of the highway; the change in speed makes him or her think that the car is going much slower than it actually is.   Velocitation is the tendency to be traveling at a speed that is faster than perceived.

प्र: A shop keeper sells an article at a loss of 8%, but when he increases the selling price of the article by Rs. 164 he earns a profit of 2.25% on the cost price. If he sells the same article at Rs. 1760, what is his profit percentage? 2326 0

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    2.5%
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    5%
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    10%
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  • 4
    7.5%
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उत्तर : 3. "10%"
व्याख्या :

Answer: C) 10% Explanation: According to the given data, Let Cost price of the article be 'cp' Then, 102.25 cp - 92 cp = 164 x 100 10.25 cp = 16400 cp = 1600 Now, if he sells at Rs. 1760 Profit = 1760 - 1600 = 160   Profit% = 160/1600 x 100 = 10%.

प्र: A box contains 90 screws each of 100 gms and 100 bolts each of 150 gms. If the entire box weighs 35.5 kg, then the weight of the empty box is ? 2326 0

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    10.5 kgs
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    12 kgs
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    9.6 kgs
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  • 4
    11.5 kgs
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उत्तर : 4. "11.5 kgs"
व्याख्या :

Answer: D) 11.5 kgs Explanation: Screws weight = 90x100 = 9000gmsbolts weight = 100 x 150 = 15000gmsweight = screws + bolts => 24000 gms =>24 kgGiven entire box weight = 35.5kgempty box = entire box weight - weight => 35.5kg - 24kg => 11.5kgso the empty box is 11.5kg.

प्र: 5% of a number is 25% more than another number. The difference between the numbers is 96. Then find the value of the numbers? 2325 0

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    102 & 6
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  • 2
    99 & 3
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  • 3
    104 & 8
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  • 4
    100 & 4
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उत्तर : 4. "100 & 4"
व्याख्या :

Answer: D) 100 & 4 Explanation: Let the first number be x and the second number be y. Given 5% of x = (25% of y) + y => 5x/100 = 5y/4 => x = 25y ......(1) and also given that, x - y = 96 => x = 96 + y .....(2) From (1)&(2) 25y = 96 + y => 24y = 96 => y = 4 From (1) x = 96 + 4 = 100 Hence, the numbers are 100 & 4.

प्र: Who has the best overall health? 2324 0

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    a person who exercises regularly and is not overweight
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    a person who is not ill and is physically active
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    a person who lives longer than his or her grandparents
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  • 4
    a person who balances social, physical, and mental health
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उत्तर : 4. "a person who balances social, physical, and mental health"
व्याख्या :

Answer: D) a person who balances social, physical, and mental health Explanation: A person who balances all the three healths such as Physical, mental and Social healths has the best overall health.

प्र: Which of the following is the lightest metal? 2319 0

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    Lithium
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  • 2
    Silver
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  • 3
    Mercury
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    Lead
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उत्तर : 1. "Lithium"
व्याख्या :

Answer: A) Lithium Explanation: Lithium is the lightest metal and the lightest solid element. It is a soft, silvery-white alkali metal. Under standard conditions. Like all alkali metals, lithium is highly reactive and flammable and is stored in mineral oil.

प्र: Reptile is to Lizard as Flower is to 2317 0

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    Orchids
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    Stem
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    Leaf
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    Petal
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उत्तर : 1. "Orchids"
व्याख्या :

Answer: A) Orchids Explanation: Here Lizard is a type of Reptiles whereas Orchid is a type of flowers. Other than Orchids all are parts of Plants.   Hence, Reptile is to Lizard as Flower is to Orchids.

प्र: The top and bottom of a tower were seen to be at angles of depression 30° and 60° from the top of a hill of height 100 m. Find the height of the tower ? 2316 1

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    42.2 mts
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    33.45 mts
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    66.6 mts
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    58.78 mts
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उत्तर : 3. "66.6 mts"
व्याख्या :

Answer: C) 66.6 mts Explanation: From above diagramAC represents the hill and DE represents the tower Given that AC = 100 m angleXAD = angleADB = 30° (∵ AX || BD ) angleXAE = angleAEC = 60° (∵ AX || CE) Let DE = h Then, BC = DE = h, AB = (100-h) (∵ AC=100 and BC = h), BD = CE tan 60°=AC/CE => √3 = 100/CE =>CE = 100/√3 ----- (1) tan 30° = AB/BD => 1/√3 = 100−h/BD => BD = 100−h(√3)∵ BD = CE and Substitute the value of CE from equation 1 100/√3 = 100−h(√3) => h = 66.66 mts The height of the tower = 66.66 mts.

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