IIT JEE Practice Question and Answer
8Q: 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 ? 3081 05b5cc6dce4d2b4197774e9bf
5b5cc6dce4d2b4197774e9bf- 111.8false
- 212.9false
- 313.7false
- 414.5true
- Show AnswerHide Answer
- Workspace
- SingleChoice
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: The accounting software Tally was developed by 3081 05b5cc68ee4d2b4197774c401
5b5cc68ee4d2b4197774c401- 1Wiprofalse
- 2TCStrue
- 3HCLfalse
- 4Infosysfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "TCS"
Explanation :
Answer: B) TCS Explanation: Tally is one of the best business accounting software for accounting, inventory, payroll. It is economical and one of the most popular ERP software solutions available in the industry. Tally, an accounting software was developed by the multinational company TCS - Tata Consultancy Services.
Q: Antibiotics are mostly obtained from 3078 15b5cc678e4d2b4197774c152
5b5cc678e4d2b4197774c152- 1Virusesfalse
- 2Fungitrue
- 3Bacteriafalse
- 4Angiospermsfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Fungi"
Explanation :
Answer: B) Fungi Explanation:
Q: A batsman scores 26 runs and increases his average from 14 to 15. Find the runs to be made if he wants top increasing the average to 19 in the same match ? 3074 05b5cc745e4d2b4197774fa22
5b5cc745e4d2b4197774fa22- 174true
- 279false
- 372false
- 460false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "74"
Explanation :
Answer: A) 74 Explanation: Number of runs scored more to increse the ratio by 1 is 26 - 14 = 12To raise the average by one (from 14 to 15), he scored 12 more than the existing average.Therefore, to raise the average by five (from 14 to 19), he should score 12 x 5 = 60 more than the existing average. Thus he should score 14 + 60 = 74.
Q: How many 7 digit numbers can be formed using the digits 1, 2, 0, 2, 4, 2, 4? 3071 05b5cc7d1e4d2b41977751295
5b5cc7d1e4d2b41977751295- 1120false
- 2360true
- 3240false
- 4424false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "360"
Explanation :
Answer: B) 360 Explanation: There are 7 digits 1, 2, 0, 2, 4, 2, 4 in which 2 occurs 3 times, 4 occurs 2 times. Number of 7 digit numbers = 7!3!×2! = 420 But out of these 420 numbers, there are some numbers which begin with '0' and they are not 7-digit numbers. The number of such numbers beginning with '0'. =6!3!×2! = 60 Hence the required number of 7 digits numbers = 420 - 60 = 360
Q: Rs. 2600 is divided into three parts A, B and C. How much A is more than C if their ratio is 1/2:1/3:1/4 ? 3068 05b5cc6d8e4d2b4197774e7bf
5b5cc6d8e4d2b4197774e7bf- 1600true
- 2300false
- 3150false
- 475false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "600"
Explanation :
Answer: A) 600 Explanation: 1/2:1/3:1/4 = 6:4:3 As the difference is 3 => 3/13x2600 = 600
Q: Dhanraj Pillay is related to which sports ? 3067 05b5cc6cde4d2b4197774e195
5b5cc6cde4d2b4197774e195- 1Cricketfalse
- 2Hockeytrue
- 3Golffalse
- 4Footballfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Hockey"
Explanation :
Answer: B) Hockey Explanation: Dhanraj Pillay is a retired Indian field hockey player and former captain of the Indian national team.He currently serves as the manager of the team.
Q: Find the odd man out in the following number series? 5, 4, 9, 32, 273 3065 05b5cc695e4d2b4197774c500
5b5cc695e4d2b4197774c500- 14false
- 29false
- 332true
- 4273false
- Show AnswerHide Answer
- Workspace
- SingleChoice
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.

