IIT JEE Practice Question and Answer
8Q: Twelve percent of Kalyan's monthly salary is equal to the sixteen per cent of Nandu's monthly salary. Sarnesh's monthly salary is half that of Nandu's monthly salary. If sarnesh's annual salary is Rs. 1.08 lacs, What is Kalyan's monthly salary ? 2099 05b5cc72ce4d2b4197774f746
5b5cc72ce4d2b4197774f746- 115,000false
- 236,000false
- 324,000true
- 412,500false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "24,000"
Explanation :
Answer: C) 24,000 Explanation: Let K = Kalyan's monthly salaryN = Nandu's monthly salaryS = Sarnesh's monthly salary.Then from given data, 12% of K = 16% of NS = N/2 => N = 2SK = 16/12 x N = 16/12 x 2S= 16/6 x 1.08/12 = 16/6 x 0.09 = 0.24 lacs = 24,000
Q: Who is known as the Father of Geometry? 2098 05b5cc6a0e4d2b4197774ca4c
5b5cc6a0e4d2b4197774ca4c- 1Aryabhatafalse
- 2Thales of Miletusfalse
- 3Pythagoras of Samosfalse
- 4Euclidtrue
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "Euclid"
Explanation :
Answer: D) Euclid Explanation: Euclid of Alexandria was a Greek mathematician, often referred to as the Father of Geometry.
Q: The series of differences between consecutive prime numbers is represented as Cp1, Cp2, Cp3, .... Cpn , Whare Cp1 is the difference between the second and the first prime number. Find the sum of series when n = 23, given that the 23rd prime number is 83 ? 2098 05b5cc6fbe4d2b4197774f09f
5b5cc6fbe4d2b4197774f09f- 187true
- 281false
- 383false
- 485false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "87"
Explanation :
Answer: A) 87 Explanation: Cp1 = p2 - p1 , Cp2 = p3 - p2 ......Cp23 = p24 - p23Sum of series = (p2-p1) + (p3-p2) + .....(p23-p22) + (p24-p23)All terms get cancelled, except p1 = 2 and p24 = 89 So Sum = -p1 + p24Sum of series = -2 + 89 = 87
Q: The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year ? 2098 05b5cc6e1e4d2b4197774ebf7
5b5cc6e1e4d2b4197774ebf7- 1Rs. 1100false
- 2Rs. 1200true
- 3Rs. 1000false
- 4Rs. 1840false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "Rs. 1200"
Explanation :
Answer: B) Rs. 1200 Explanation: P --- 10 ----- 600 P --- 5 ----- 300 3P --- 5 ----- 900 __________ 1200
Q: Select the correct statement about oxygen transport in blood 2098 05b5cc69be4d2b4197774c7f9
5b5cc69be4d2b4197774c7f9- 1A 50% oxygen saturation level of blood returning to the lungs might indicate an activity level higher than normalfalse
- 2During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2true
- 3During conditions of acidosis, hemoglobin is able to carry oxygen more efficientlyfalse
- 4Increased BPG levels in the red blood cells enhance oxygen-carrying capacityfalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2"
Explanation :
Answer: B) During normal activity, a molecule of hemoglobin returning to the lungs carries one molecule of O2 Explanation:
Q: Which of the following statements is correct? 2097 05b5cc6afe4d2b4197774d20b
5b5cc6afe4d2b4197774d20b- 1I am very happy to start this Programtrue
- 2I am too happy to start this Programfalse
- 3Both A & Bfalse
- 4Nonefalse
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "I am very happy to start this Program"
Explanation :
Answer: A) I am very happy to start this Program Explanation: Here I am very happy to start this Program is correct statement. "Too" is not used with pleasant adjectives. It means 'more than required' and is usually used with unpleasant adjectives. So, 'too healthy', 'too happy', 'too glad' etc are wrong.
Q: How many birthdays does the average person have? 2096 05b5cc670e4d2b4197774c05f
5b5cc670e4d2b4197774c05f- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.
Q: How many even numbers are there in the following sequence of numbers which are immediately followed by an odd number as well as immediately preceded by an even number? 8 5 8 6 7 6 8 9 3 2 7 5 3 4 2 2 3 5 5 2 2 8 1 1 9 3 1 7 5 1 2096 05b5cc7f2e4d2b41977751ea2
5b5cc7f2e4d2b41977751ea2- 12false
- 23false
- 34true
- 45false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "4"
Explanation :
Answer: C) 4 Explanation: We have to find out even number - even number - odd number sequence. 8 5 8 6 7 6 8 9 3 2 7 5 3 4 2 2 3 5 5 2 2 8 1 1 9 3 1 7 5 1 There are four such such even numbers: 6,8,2 and 8.