Aptitude Practice Question and Answer

Q:

यदि a : b = 20:5  है तो (13a-9b): (11a-7b) का मान होगा?

2104 0

  • 1
    $$ {43\over 37}$$
    Correct
    Wrong
  • 2
    $$ {43\over 42}$$
    Correct
    Wrong
  • 3
    $$ {44\over 37}$$
    Correct
    Wrong
  • 4
    $$ {40\over 33}$$
    Correct
    Wrong
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Answer : 1. "$$ {43\over 37}$$"

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Answer : 1. "19 "

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Answer : 3. "52 kg "

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Answer : 1. "98 "

Q:

एक ट्रेन 264 मी लम्बे एक टेलीग्राफ पोस्ट और एक पुल को क्रमश: 8 सेकंड और 20 सेकंड में पार करती है। ट्रेन की गति कितनी है? 

2103 0

  • 1
    69.5 किमी/घंटा
    Correct
    Wrong
  • 2
    70 किमी/घंटा
    Correct
    Wrong
  • 3
    79 किमी/घंटा
    Correct
    Wrong
  • 4
    79.2 किमी/घंटा
    Correct
    Wrong
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Answer : 4. "79.2 किमी/घंटा"

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Answer : 3. "7:18"
Explanation :

Let total number of person is=100
married person=28
unmarried person will be 100-28=72
The ratio will be 28/72=7/18


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Answer : 2. "45 yrs"
Explanation :

Answer: B) 45 yrs Explanation: Let father's age be x year and son's age be y year. According to question, 2(x+y) = 8y _______(I) and (x+y)/2 = 30 => x+y = 60 years__________(II) From equation (I) and (II) 8 y = 120 y = 15 years, Hence x = 45 years.

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Answer : 2. "25 "

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