IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What is the reciprocal of a negative number? 1625 05b5cc690e4d2b4197774c417
5b5cc690e4d2b4197774c417- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
The reciprocal of a negative number is always a negative number. So that the number and its reciprocal multiply to 1. All real numbers except 0 have reciprocals.
प्र: R enter into a partnership in the ratio 2 : 3 : 5 . After 2 months, P increases his share 20% and Q by 10%. If the total profit at the end of one year is Rs 1,90,500, what amount will 'R' receive at the end of year as share in profit ? 1625 05b5cc6cbe4d2b4197774e0fe
5b5cc6cbe4d2b4197774e0fe- 1Rs. 90500false
- 2Rs. 87500false
- 3Rs. 88900false
- 4Rs. 90000true
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उत्तर : 4. "Rs. 90000"
व्याख्या :
Answer: D) Rs. 90000 Explanation: Ratio of investments for 1 year => (P : Q : R) = (2x2 + 2.4x10) : (3x2 + 3.3x10) : (5x12) => (P : Q : R) = 28 : 39 : 60 Now R share = 190500 x 60/127 = Rs. 90000.
प्र: 1/8 as a decimal? 1624 05b5cc6a6e4d2b4197774cd6f
5b5cc6a6e4d2b4197774cd6f- 10.125true
- 20.225false
- 30.325false
- 40.425false
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उत्तर : 1. "0.125"
व्याख्या :
Answer: A) 0.125 Explanation: 1/8 to convert into decimal, Find an equivalent fraction with a denominator of a power of 10. In this case, we will use 1000. 18 x 125125 = 1251000 This can now be written as a decimal with 3 decimal places (because we have thousandths. i.e, 0.125 Hence, 18 as a decimal = 0.125
प्र: The angle between the geographical meridian and magnetic meridian is called as ______. 1624 05b5cc6cee4d2b4197774e279
5b5cc6cee4d2b4197774e279- 1Angle of declinationtrue
- 2Angle of dipfalse
- 3Angle of inclinationfalse
- 4Azimuthfalse
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उत्तर : 1. "Angle of declination"
व्याख्या :
Answer: A) Angle of declination Explanation:
प्र: Book is to chapter as organization is to 1624 05b5cc68ee4d2b4197774c3e9
5b5cc68ee4d2b4197774c3e9- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A book is consists of various chapters, so as the Organization consists of various departments. Therefore if Book is to chapter so organization is to department. Hence, Book : Chapter :: Organisation : Department.
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उत्तर :
व्याख्या :
90 D in RA means 90 Degrees in Right Angle. It is a logic question which is to be eloborated. Some more of its kind are: 1. 52 W in a Y - 52 Weeks in a Year 2. 7 C in a R - 7 Colours in a Rainbow 3. 9 P in SS 4. 5 C in an OF 5. 12 S of the Z
प्र: In following number series only one number is wrong. Find out that wrong or odd number in the series? 6, 78, 858, 7722, 54055, 270270 1624 05b5cc6bce4d2b4197774d8bb
5b5cc6bce4d2b4197774d8bb- 1270270false
- 254055true
- 37722false
- 4858false
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उत्तर : 2. "54055"
व्याख्या :
Answer: B) 54055 Explanation: Here the given series follows a pattern that, multiplying the number with odd numbers in decreasing order starting with 13. That is, 6 × 13 = 78 65 × 11 = 858 858 × 9 = 7722 7722 × 7 = 54054 54054 × 5 = 270270 Hence, the wrong number is 54055
प्र: Write 0.125 as a percent %? 1623 05b5cc6b3e4d2b4197774d42d
5b5cc6b3e4d2b4197774d42d- 112%false
- 212.5%true
- 313%false
- 413.5%false
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उत्तर : 2. "12.5%"
व्याख्या :
Answer: B) 12.5% Explanation: Here to convert 0.125 into % First convert to fractio Multiply and divide by 1000 => 0.125 x 10001000 = 1251000 = 18 => Now, in percentage18 x 100 = 12.5%

