IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: 19 friends went to a restaurant for a combined weekend dinner party. 13 of them spent Rs. 79 each on their dinner and the rest spent Rs. 4 more than the average expenditure of all the 19. What was the total money spent by them? 930 0

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    Rs. 1398.96
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  • 2
    Rs. 1457.09
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    Rs. 1662.35
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  • 4
    Rs. 1536.07
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उत्तर : 4. "Rs. 1536.07"
व्याख्या :

Answer: D) Rs. 1536.07 Explanation: Let average expenditure was Rs. R 13 x 79 + 6x(R + 4) = 19R => R = Rs. 80.84 Total money = 19 x 80.84 = Rs. 1536.07.

प्र: For intra-State movement, the e-way bill by GST council will be rolled out in a phased manner beginning April 15 and will cover all the States by 929 0

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    May 1
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    June 1
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    May 31
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  • 4
    July 31
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उत्तर : 1. "May 1"
व्याख्या :

Answer: A) May 1 Explanation: For intra-State movement, the e-way bill will be rolled out in a phased manner beginning April 15 and will cover all the States by June 1. Businesses will continue to file summary sales return GSTR-3B until June as the GST (Goods and Services Tax) Council has extended the present system of return-filing by three months. Electronic way or e-way bill for movement of goods between States would be implemented from April 1.

प्र: Where does most weather occur in the atmosphere? 928 0

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    Ionosphere
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    Stratosphere
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    Troposphere
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    Mesosphere
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उत्तर : 3. "Troposphere"
व्याख्या :

Answer: C) Troposphere Explanation: The troposphere is the lowest layer of the atmosphere and where most clouds are. That means all weather is in the troposphere. Almost all weather occurs in the Troposphere, basically, the lowest layer that goes up to about 10 - 15 kms.

प्र: Find the regular polygon whose interior angel is 150 more than exterior angle. note the total sum of interior and exterior angle should be 180 at one point ? 927 0

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    12
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    24
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    36
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    6
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उत्तर : 2. "24"
व्याख्या :

Answer: B) 24 Explanation: Sum of Interior angle is 180 .and it is given that interior angle is 150 more than exterior,so let exterior angle is x then interior will be x+150 now , interior + exterior =180x+150+x=180x=15 now , number of sides of polygon = 360 / exterior anglen = 360 / 15n = 24

प्र: Indians who have been featured on Forbe's list of the 100 Greatest Living Business Minds ? 925 0

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    Ratan Tata
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    Lakshmi Mittal
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    Vinod Khosla
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    All of the above
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उत्तर : 4. "All of the above"
व्याख्या :

Answer: D) All of the above Explanation: Three Indians – Ratan Tata, Lakshmi Mittal and Vinod Khosla have been featured on Forbe's list of the 100 Greatest Living Business Minds.

प्र: There are 3 sections with 5 questions each. If four questions are selected from each section, the chance of getting different questions is ? 920 0

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    1000
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    625
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    525
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    125
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उत्तर : 4. "125"
व्याख्या :

Answer: D) 125 Explanation: Methods for selecting 4 questions out of 5 in the first section = 5 x 4 x 3 x 2 x 1/4 x 3 x 2 x 1 = 5. Similarly for other 2 sections also i.e 5 and 5 So total methods = 5 x 5 x 5 = 125.

प्र: Who is the new Chairman of ISRO in 2018? 920 0

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    K. Sivan
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    S. Manish Arya
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    A.S. Kiran Kumar
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  • 4
    Bibeth Roy
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उत्तर : 1. "K. Sivan"
व्याख्या :

Answer: A) K. Sivan Explanation: Rocket specialist K. Sivan has been appointed as new Chairman of India's space agency ISRO for a three-year term. He replaces current ISRO Chairman A.S. Kiran Kumar, whose term ends January 14, 2018.   He is currently Director of Vikram Sarabhai Space Centre in Trivandrum.   His expertise gave ISRO ability to send 104 satellites in a single mission.

प्र: Which compound forms a colored aqueous solution? 913 0

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    CrCl3
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    KBr
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    CaCl2
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    NaOH
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उत्तर : 1. "CrCl3"
व्याख्या :

Answer: A) CrCl3 Explanation: Colored aqueous solutions are a characteristic of transition compounds. The only transition compound in the above choices is CrCl3. Cr is a transition element.

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