GATE Practice Question and Answer
8Q: 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 1633 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: How many years it takes for Pluto to Orbit the Sun? 1385 05b5cc6bce4d2b4197774d8b6
5b5cc6bce4d2b4197774d8b6- 176 yrsfalse
- 2144 yrsfalse
- 3198 yrsfalse
- 4248 yrstrue
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Answer : 4. "248 yrs"
Explanation :
Answer: D) 248 yrs Explanation: It takes 248 yrs for Pluto to orbit the Sun.
Q: Find the next number in the given series 0.25, 8, 128, 1024, ? 2267 05b5cc6bce4d2b4197774d8b1
5b5cc6bce4d2b4197774d8b1- 14096true
- 22526false
- 38486false
- 42620false
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Answer : 1. "4096"
Explanation :
Answer: A) 4096 Explanation: Here given series follows a pattern that 0.25, 8, 128, 1024, ? 0.25 x 32 = 8 8 x 16 = 128 128 x 8 = 1024 1024 x 4 = 4096
Q: A shopkeeper sold a mobile phone for Rs. 12000. Had he offered discount of 10% on the selling price, there would be a loss of 4%. What is the cost price of that Mobile phone? 1678 05b5cc6bce4d2b4197774d8a7
5b5cc6bce4d2b4197774d8a7- 1Rs. 12,500false
- 2Rs. 11,250true
- 3Rs. 12,750false
- 4Rs. 11,680false
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Answer : 2. "Rs. 11,250"
Explanation :
Answer: B) Rs. 11,250 Explanation: Given that SP = Rs. 12000 - 10% = Rs. 10,800 Loss% = 4 We know that, C.P = 100/(100 - Loss%) x 100 => 100/100-4 x 10800 => 1080000/96 C.P = Rs. 11,250
Q: Find the Missing number in the given Series ? 2, 3, 6, 15, ? , 157.5 1405 05b5cc6bce4d2b4197774d8ac
5b5cc6bce4d2b4197774d8ac- 187false
- 278.5false
- 356.5false
- 445true
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Answer : 4. "45"
Explanation :
Answer: D) 45 Explanation: Here given 2, 3, 6, 15, ? , 157.5 2 x 1.5 = 3 3 x 2 = 6 6 x 2.5 = 15 15 x 3 = 45 45 x 3.5 = 157.5 Therefore, the missing number is 45
Q: 10 25 45 54 60 75 85 Find the Odd Number? 1658 05b5cc6bce4d2b4197774d897
5b5cc6bce4d2b4197774d897- 154true
- 210false
- 345false
- 485false
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Answer : 1. "54"
Explanation :
Answer: A) 54 Explanation: In given Series, all the numbers except 54 are multiples of 5.
Q: A & B invest Rs. 1,16,000 & 1,44,000 respectively. B invests for 6 months. At the end of the year, B’s share is Rs. 9000, find the overall profit? 1600 05b5cc6bce4d2b4197774d877
5b5cc6bce4d2b4197774d877- 1Rs. 23,500true
- 2Rs. 19,780false
- 3Rs. 21,700false
- 4Rs. 20,050false
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Answer : 1. "Rs. 23,500"
Explanation :
Answer: A) Rs. 23,500 Explanation: Given A & B in partnership A Invests 116000 for 12 months => A's share = 116000 x 12 = 13,92,000 B Invests for 6 months => B's share = 144000 x 6 = 8,64,000 Their Ratio = 1392 : 864 = 29 : 18 Let the Annual profit = P Given B's share = Rs. 9000 => 18/47 x P = 9000 => P = 9000 x 47/18 => P = 23,500 Hence, Overall profit = P = Rs. 23,500
Q: 83% of 2350 = ? 1408 05b5cc6bce4d2b4197774d87c
5b5cc6bce4d2b4197774d87c- 11889.95false
- 21912.35false
- 31875.25false
- 41950.50true
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Answer : 4. "1950.50"
Explanation :
Answer: D) 1950.50 Explanation: 83% of 2350 = ? 83/100 x 2350 =8.3 x 235 =1950.50