IIT JEE प्रश्न और उत्तर का अभ्यास करें

नवीनतमलोकप्रियमूल्यांकनपेज देखें 46 of 416कुल सवाल 3327 जॉइन Examsbook

प्र: 5 years ago Sushma was 5 times as old as her Son. 5 years hence her age will be 8 less than three times the corresponding age of her Son. Find their ages ? 4126 0

  • 1
    24 and 13 years
    सही
    गलत
  • 2
    48 and 24 years
    सही
    गलत
  • 3
    35 and 11 years
    सही
    गलत
  • 4
    33 and 15 years
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 3. "35 and 11 years"
व्याख्या :

Answer: C) 35 and 11 years Explanation: Let the age of sushma be x and the age of her son is yThen five years before x-5=5(y-5) ...(1)Five years hence x+5 = 3(y+5)-8 .....(2) By soving (1) & (2), we get5y - 15 = 3y + 7y = 11 => x = 35 Therefore, the age of Sushma = 35 and her son = 11.

प्र: Who set up the world's first floating ATM ? 4116 0

  • 1
    Bank of America
    सही
    गलत
  • 2
    Barclays Bank
    सही
    गलत
  • 3
    Axis Bank
    सही
    गलत
  • 4
    State Bank of India
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "State Bank of India"
व्याख्या :

Answer: D) State Bank of India Explanation: India's banking behemoth -- the State Bank of India -- has set up the world's first-ever floating ATM on a boat in Kerala. The boat with the ATM on board will berth at jetties in Kerala's huge backwaters through which thousands of people travel daily.

प्र: A group of men can complete a job in K hours. After every 4 hours, half the number of men working at that point of time leave the job. Continuing this way if the job is finished in 16 hours, what is the value of K ? 4114 0

  • 1
    7 hrs
    सही
    गलत
  • 2
    7.5 hrs
    सही
    गलत
  • 3
    8 hrs
    सही
    गलत
  • 4
    8.25 hrs
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "7.5 hrs"
व्याख्या :

Answer: B) 7.5 hrs Explanation: Let there are L men job requires LK man hours.   job completed in first 4 hrs = L x 4 = 4L job completed in next 4 hrs = 4 x L/2 = 2L job completed in next 4 hrs = 4 x L/4 = L job completed in last 4 hrs = 4 x L/8 = L/2 4L + 2L + L + L/2 = KL K = 7+1/2 = 7.5 hours.

प्र: Read the following information carefully and answer the question below. Seven Students – A, B, C, D, E, F and G like different Pens viz, Reynolds, Cello, Parker, Rotomac, Flair, Linc and Eilcos but not necessarily in the same order. They also study in three different standards viz. 9th, 10th and 12th. Not more than three and not less than two students study in the same class. A do not likes cello pen. Persons who like cello and Flair pens, study in the same class. G studies in 10th standard but he does not likes flair pen. B studies with only one student, who likes linc pens. B does not studies with G. E likes Rotomac but he do not study in class 9. D studies in class 9 but he does not like line pen. A does not study in class 12. F does not like linc pen. The one likes Parker pen, studies in class 10. The one, who likes Reynolds pen, studies in same class with one who likes Flair pen. D likes neither Flair pen nor cello pen. 1. Who likes Parker Pen ?     (1) F  (2) G  (3) H  (4) None 2. Three of the following four are similar in a certain way. Find the odd one ?     (1) BE  (2) AD  (3) EG  (4) DF 3. Which three student study in the same class ?     (1) ADE  (2) DFG  (3) ADF  (4) AEG 4. C likes which pen ?     (1) Reynolds  (2) Flair  (3) Cello  (4) Linc 4112 0

  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर :
व्याख्या :

1. Answer (2) G 2. Answer (1) BE All other pairs are in same class. 3. Answer (3) ADF in class 9. 4. Answer (4) Linc pen.

प्र: The two trains of lengths 400 m, 600 m respectively, running at same directions. The faster train can cross the slower train in 180 sec, the speed of the slower train is 48 kmph. Then find the speed of faster train  ? 4110 0

  • 1
    68 kmph
    सही
    गलत
  • 2
    52 kmph
    सही
    गलत
  • 3
    76 kmph
    सही
    गलत
  • 4
    50 kmph
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 1. "68 kmph"
व्याख्या :

Answer: A) 68 kmph Explanation: Let the speed of the faster train be 'X' kmph, Then their relative speed= X - 48 kmphTo cross slower train by faster train, Distance need to be cover = (400 + 600)m = 1 km. and Time required = 180 sec = 180/3600 hr = 1/20 hr.Time = Distance/Speed => 1/20 = 1/(x-48)X = 68 kmph

प्र: Library is to Book as Book is to 4086 0

  • 1
    Words
    सही
    गलत
  • 2
    Pages
    सही
    गलत
  • 3
    Binding
    सही
    गलत
  • 4
    Cover
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Pages"
व्याख्या :

Answer: B) Pages Explanation: A Library consists of Books in the same way Book consists Pages.   Hence, Library : Book :: Book : Pages.

प्र: Which of these fields was the lost generation associated with? 4083 0

  • 1
    Movies
    सही
    गलत
  • 2
    Literature
    सही
    गलत
  • 3
    Science
    सही
    गलत
  • 4
    Music
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 2. "Literature"
व्याख्या :

Answer: B) Literature Explanation: Lost Generation definition, the generation of men and women who came of age during or immediately following World War I. "Literature" was the one field among the following choices given in the question that was associated with the "Lost Generation".

प्र: Which Payments Bank becoming the first bank to offer cash backs on deposits  ? 4079 0

  • 1
    Postal Payments Bank
    सही
    गलत
  • 2
    Airtel Payments Bank
    सही
    गलत
  • 3
    Aditya Birla Payments Bank
    सही
    गलत
  • 4
    Paytm Payments Bank
    सही
    गलत
  • उत्तर देखेंउत्तर छिपाएं
  • Workspace

उत्तर : 4. "Paytm Payments Bank"
व्याख्या :

Answer: D) Paytm Payments Bank Explanation: Paytm Payments Bank becoming the first bank to offer cash backs on deposits. Customers will also be offered zero charges on all online transactions and no minimum balance requirement. The Payments Bank plans to roll out 31 branches and 3,000 customer service points in the first year. For savings accounts, it will offer an interest of 4 percent per annum. It will also offer current accounts to its millions of merchants.

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई

      त्रुटि की रिपोर्ट करें

    कृपया संदेश दर्ज करें
    त्रुटि रिपोर्ट सफलतापूर्वक जमा हुई