IIT JEE Practice Question and Answer
8Q: Express 0.875 and 0.375 as a Fraction. 1471 05b5cc6b3e4d2b4197774d3ed
5b5cc6b3e4d2b4197774d3ed- 13/11 & 7/11false
- 27/9 & 9/13false
- 37/8 & 3/8true
- 47/9 & 9/11false
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Answer : 3. "7/8 & 3/8"
Explanation :
Answer: C) 7/8 & 3/8 Explanation: Given 0.875 and 0.375 0.875 :: After decimal point there are 3 digits 875 Now, mutiply and divide 0.875 with 1000 0.875 x 10001000 = 8751000 Now, this can be reduced to fraction 78Therefore, 0.875 as fraction = 78 Similarly, 0.375 :: After decimal point there are 3 digits 375 Now, mutiply and divide 0.375 with 1000 0.375 x 10001000 = 3751000Now, this can be reduced to fraction 38Therefore, 0.375 as fraction = 38
Q: Who became the first wicketkeeper in world cricket to effect 100 stumpings in ODI's in 2017 ? 1470 05b5cc6c8e4d2b4197774dee6
5b5cc6c8e4d2b4197774dee6- 1Mahendra Singh Dhonitrue
- 2Kumar Sangakkarafalse
- 3Mark Boucherfalse
- 4Adam Gilchristfalse
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Answer : 1. "Mahendra Singh Dhoni"
Explanation :
Answer: A) Mahendra Singh Dhoni Explanation: Former India captain Mahendra Singh Dhoni became the first wicketkeeper in world cricket to effect 100 stumpings in One Day Internationals. He broke the record of former Sri Lankan captain Kumar Sangakkara.
Q: The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age og the youngest child ? 1470 05b5cc718e4d2b4197774f49a
5b5cc718e4d2b4197774f49a- 18 yrsfalse
- 216 yrsfalse
- 36 yrsfalse
- 44 yrstrue
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Answer : 4. "4 yrs"
Explanation :
Answer: D) 4 yrs Explanation: Let the age of the youngest child is 'X' years.Then the child elder than the yongest is 'X + 3' yrsSince each have 3yrs difference upto 5 childrenAnd given that=> X + X+3 + X+6 + X+9 + X+12 = 50=> 5X + 30 = 50=> X = 4 yrs.
Q: Is air homogeneous or heterogeneous? 1470 05b5cc642e4d2b4197774bb52
5b5cc642e4d2b4197774bb52- 1homogeneoustrue
- 2heterogeneousfalse
- 3Both A & Bfalse
- 4None of the abovefalse
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Answer : 1. "homogeneous"
Explanation :
Answer: A) homogeneous Explanation: A Mixture is a material made up of two or more different substances which are mixed. Mixtures can be either homogeneous or heterogeneous. * A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties. * A heterogeneous mixture is a type of mixture in which the components can be seen, as there are two or more phases present. Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.
Q: Who is in the judicial branch? 1470 05b5cc64ae4d2b4197774bc56
5b5cc64ae4d2b4197774bc56- Show AnswerHide Answer
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Answer :
Explanation :
Judicial branch is one among the three branches of the government. Supreme court, the magistrate (local) and municipal (city) courts are there in the judicial branch. The Judicial branch interprets the laws.
Q: A can complete 9/10 part of a work in 31 days. After that, with the help of B he can complete the remaining work in 4 days. In how many days will A and B together can complete that work ? 1470 05b5cc6c0e4d2b4197774db14
5b5cc6c0e4d2b4197774db14- 136false
- 240true
- 342false
- 438false
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Answer : 2. "40"
Explanation :
Answer: B) 40 Explanation: Remaining work = 1 - 9/10 = 1/10 => A & B together completes 1/10 of work in 4 days => 1 work can completed in ------ ? days Let it be x days => 4110=x1 => x = 40 days. Hence, A & B together can complete the work in 40 days.
Q: Solve the MathPuzzle Challenge ? 1469 05b5cc6c6e4d2b4197774ddff
5b5cc6c6e4d2b4197774ddff- 14!false
- 25!false
- 36!false
- 4Can't be determinedtrue
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Answer : 4. "Can't be determined"
Explanation :
Answer: D) Can't be determined Explanation: NUMERICAL has 9 positions in which 2, 4, 6, 8 are even positions. And it contains 5 consonents i.e, N, M, R, C & L. Hence this cannot be done as 5 letters cannot be placed in 4 positions. Therefore, Can't be determined.
Q: The more there is the less you see. What is that? 1469 05b5cc69de4d2b4197774c8d6
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Answer :
Explanation :
It is Darkness. If it is more darkness outside, we can see less in that.

