IIT JEE Practice Question and Answer

Q: A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's husband age is ? 2858 0

  • 1
    45
    Correct
    Wrong
  • 2
    24
    Correct
    Wrong
  • 3
    42
    Correct
    Wrong
  • 4
    54
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 4. "54"
Explanation :

Answer: D) 54 Explanation: By trial and error method from the given options, as 54 - 45 =  (1/11) x (45+54)  = 99/11  = 9 Hence this satisfies the given conditions. Then the woman's husband age is 54.

Q: Ratio of the ages of Mahesh and Nilesh is 5 : x. Mahesh is 18 years younger to Ramesh. After nine years Ramesh will be 47 years old. If the difference between the ages of Mahesh and Nilesh is same as the age of Ramesh, what is the value of x ? 2855 0

  • 1
    11.8
    Correct
    Wrong
  • 2
    12.9
    Correct
    Wrong
  • 3
    13.7
    Correct
    Wrong
  • 4
    14.5
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 4. "14.5"
Explanation :

Answer: D) 14.5 Explanation: Let the present ages of Mahesh, Nilesh and Ramesh be k, l and m respectively.k/l = 5/x ------ (1)k = m - 18 ------ (2)m + 9 = 47 ------ (3)k - l = m ----- (4)(3) => m = 47 - 9 = 38 years(2) => k = 38 -18 = 20 years(1) => 20/l = 5/x => l = 4x(4) => 4x - 20 = 38=> 4x = 58 => x = 14.5

Q: Which type of memory is not directly addressable by the CPU and requires special software called EMS ? 2855 2

  • 1
    Expanded
    Correct
    Wrong
  • 2
    Base
    Correct
    Wrong
  • 3
    Conventional
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "Expanded"
Explanation :

Answer: A) Expanded Explanation:

Q: Programs stored in ROM are called 2850 1

  • 1
    Hardware
    Correct
    Wrong
  • 2
    Firmware
    Correct
    Wrong
  • 3
    Freeware
    Correct
    Wrong
  • 4
    Software
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "Firmware"
Explanation :

Answer: B) Firmware Explanation: The programs which are as permanent as hardware and stored in ROM are known as Firmware.   Data stored in ROM can only be modified slowly, with difficulty, or not at all, so it is mainly used to store firmware (software that is closely tied to specific hardware, and unlikely to need frequent updates) or application software in plug-in cartridges.

Q: A garrison of 2000 men has provisions for 54 days. At the end of 15 days, a reinforcement arrives, and it is now found that the provisions will last only for 20 days more. What is the reinforcement ? 2849 0

  • 1
    1900
    Correct
    Wrong
  • 2
    2100
    Correct
    Wrong
  • 3
    1700
    Correct
    Wrong
  • 4
    2000
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "1900"
Explanation :

Answer: A) 1900 Explanation: Given 2000 ---- 54 days The provisions for 2000 men for 39 days can be completed by 'm' men for only 20 days. i.e, 2000 ----- 39 days == m ---- 20 days => m x 20 = 2000 x 39 m = 3900 So total men for 20 days is 3900 => 2000 old and 1900 new reinforcement. Hence, reinforcement = 1900.

Q: Find the odd man out in the following number series? 5, 4, 9, 32, 273 2846 0

  • 1
    4
    Correct
    Wrong
  • 2
    9
    Correct
    Wrong
  • 3
    32
    Correct
    Wrong
  • 4
    273
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 3. "32"
Explanation :

Answer: C) 32 Explanation: The given number series follows 5, 4, 9, 32, 308 pattern that   5 5 x 1 - 1 = 4 4 x 3 - 3 = 9 9 x 5 - 5 = 40 (not equals to 32) 40 x 7 - 7 = 273   Hence, the odd man in the given number series is 32.

  • Show Answer
  • Workspace

Answer : 4. "9:1"
Explanation :

Answer: D) 9:1 Explanation: Milk = 3/5 x 20 = 12 liters, water = 8 liters   If 10 liters of mixture are removed, amount of milk removed = 6 liters and amount of water removed = 4 liters.   Remaining milk = 12 - 6 = 6 liters Remaining water = 8 - 4 = 4 liters   10 liters of pure milk are added, therefore total milk = (6 + 10) = 16 liters.   The ratio of milk and water in the new mixture = 16:4 = 4:1   If the process is repeated one more time and 10 liters of the mixture are removed, then amount of milk removed = 4/5 x 10 = 8 liters.   Amount of water removed = 2 liters.   Remaining milk = (16 - 8) = 8 liters. Remaining water = (4 -2) = 2 liters.   Now 10 lts milk is added => total milk = 18 lts   The required ratio of milk and water in the final mixture obtained   = (8 + 10):2 = 18:2 = 9:1.

Q: Which veda deals with medicine? 2841 0

  • 1
    Atharva Veda
    Correct
    Wrong
  • 2
    Yajur Veda
    Correct
    Wrong
  • 3
    Sama Veda
    Correct
    Wrong
  • 4
    Rig Veda
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "Atharva Veda"
Explanation :

Answer: A) Atharva Veda Explanation: The Vedas are considered the earliest literary record of Indo-Aryan civilization. It is the most sacred scriptures of India.   There are four Vedas in Hinduism. They are: 1. The Rig Veda, 2. Sama Veda, 3. Yajur Veda and 4. Atharva Veda. Most ailments, both physical and mental, were attributed to malevolent spirits and cures consisted of rituals, charms, mantras, medicines and surgical intervention. The hymns in the Atharva Veda, the last of the four Vedas, and largely composed after the Aryans were well settled in the sub-continent, indicate that indigenous non-Aryan healing practices had influenced the Vedic Aryan healers.

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully