GATE Practice Question and Answer
8Q: Sambhu buys rice at Rs. 10/kg and puts a price tag on it so as to earn a profit of 20%. However, his faulty balance shows 1000 gm when it is actually 800 gm. What is his actual gain percentage ? 1629 05b5cc709e4d2b4197774f299
5b5cc709e4d2b4197774f299- 150%true
- 225%false
- 375%false
- 460%false
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Answer : 1. "50%"
Explanation :
Answer: A) 50% Explanation: CP of 1000gm = Rs. 10SP of 800gm = Rs. 12SP of 1000gm =12x1000/800 = Rs. 15 Now take 1000gm as reference to calculate profit.Profit=SP-CP=15-10=Rs. 5Profit % = 5x100/10 = 50%
Q: If L exceeds K by 30%, then K is less than L by ? 1628 05b5cc6f8e4d2b4197774f05e
5b5cc6f8e4d2b4197774f05e- 114 2/5 %false
- 223 1/3 %true
- 320 %false
- 416 %false
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Answer : 2. "23 1/3 %"
Explanation :
Answer: B) 23 1/3 % Explanation: K = 100 L = 130130------ 30100------- ? => 23 1/13 %
Q: 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 1627 05b5cc6bce4d2b4197774d8bb
5b5cc6bce4d2b4197774d8bb- 1270270false
- 254055true
- 37722false
- 4858false
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Answer : 2. "54055"
Explanation :
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
Q: Book is to chapter as organization is to 1627 05b5cc68ee4d2b4197774c3e9
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Answer :
Explanation :
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.
Q: Metals are good conductors of electricity because 1626 05b5cc6a5e4d2b4197774ccd6
5b5cc6a5e4d2b4197774ccd6- 1The atoms are lightly packedfalse
- 2They contain free electronstrue
- 3They have high melting pointfalse
- 4All the abovefalse
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Answer : 2. "They contain free electrons"
Explanation :
Answer: B) They contain free electrons Explanation: Metal particles are held together by strong metallic bonds, which is why they have high melting and boiling points. The free electrons in metals can move through the metal, allowing metals to conduct electricity. Because the electrons in the atom's higher energy levels can separate from the atoms easily, they can be pulled out with very little energy. Because the molecular structure of the metal is such that 'free electrons' are free to move, thus being categorized as electrically conductive. For example, copper is used for electrical wiring because it is a good conductor of electricity.
Q: What is the reciprocal of a negative number? 1625 05b5cc690e4d2b4197774c417
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Answer :
Explanation :
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.
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Answer :
Explanation :
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
Q: Write 0.125 as a percent %? 1624 05b5cc6b3e4d2b4197774d42d
5b5cc6b3e4d2b4197774d42d- 112%false
- 212.5%true
- 313%false
- 413.5%false
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Answer : 2. "12.5%"
Explanation :
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%