Quantitative Aptitude Practice Question and Answer
8Q: 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? 2220 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: What will come in place of the question mark(?) in the following question ? 56% of 870 + 82% of 180 = 32% of 90 + ? 2220 05b5cc6c5e4d2b4197774dd37
5b5cc6c5e4d2b4197774dd37- 1777false
- 2666false
- 3606true
- 4789false
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Answer : 3. "606"
Explanation :
Answer: C) 606 Explanation: 56% of 870 = 56x870/100 = 487.20 82% of 180 = 82x180/100 = 147.60 32% of 90 = 32x90/100 487.20 + 147.6 - 28.8 = ? ? = 634.8 - 28.8 ? = 606.
Q: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 2220 05b5cc6c8e4d2b4197774df41
5b5cc6c8e4d2b4197774df41- 1143false
- 263true
- 3323false
- 435false
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Answer : 2. "63"
Explanation :
Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e, 2 × 3 = 6 3 × 5 = 15 5 × 7 = 35 7 × 11 = 77 11 × 13 = 143 13 × 17 = 221 17 × 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.
Q: K and L start a business jointly. L invests Rs.16000 for 8 months and L remains in the business for 4 months. Out of the total profit B claims 2/7th share. How much money is contributed by B ? 2216 05b5cc6e1e4d2b4197774ebe8
5b5cc6e1e4d2b4197774ebe8- 1Rs. 9040false
- 2Rs. 10,400false
- 3Rs. 12,800true
- 4Rs. 6350false
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Answer : 3. "Rs. 12,800"
Explanation :
Answer: C) Rs. 12,800 Explanation: 16x8 : Px4 = 5:2 P = 12.8 => Rs.12,800
Q: Can yoy guess the Age of Karthik & Kalyan ? 2216 05b5cc6d2e4d2b4197774e476
5b5cc6d2e4d2b4197774e476- 168 & 44false
- 264 & 48true
- 358 & 54false
- 476 & 36false
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Answer : 2. "64 & 48"
Explanation :
Answer: B) 64 & 48 Explanation: Given Karthik + Kalyan = 112 Given that when karthik is at the age of kalyan he is twice of Kalyan's age i.e When he was 48 means Kalyan is at 24 => Present age of Kalyan is 48 And that of Karthik is 112 - 48 = 64
Q: At what time, between 3 o’clock and 4 o’clock, both the hour hand and minute hand coincide each other ? 2216 05b5cc6d8e4d2b4197774e74b
5b5cc6d8e4d2b4197774e74b- 13:16 7/11false
- 23:16 11/4false
- 33:30false
- 43:16 4/11true
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Answer : 4. "3:16 4/11"
Explanation :
Answer: D) 3:16 4/11 Explanation: Coincide means 00 angle. This can be calculated using the formulafor time A to B means [11m/2 - 30 (A)] Here m gives minutes after A the both hands coincides. Here A = 3, B = 4 0 =11m/2 –30 × 311m = 90 × 2 = 180m= 180/11 = 16 4/11 So time = 3 : 16 4/11
Q: Twelve children take sixteen days to complete a work which can be completed by 8 adults in 12 days. After working for 3 days, sixteen adults left and six adults and four children joined them. How many days will they take to complete the remaining work ? 2215 05b5cc758e4d2b4197774fbf9
5b5cc758e4d2b4197774fbf9- 13 daysfalse
- 22 daysfalse
- 36 daystrue
- 412 daysfalse
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Answer : 3. "6 days"
Explanation :
Answer: C) 6 days Explanation: From the given data, 12 children 16 days work,One child’s one day work = 1/192. 8 adults 12 days work,One adult’s one day’s work = 1/96. Work done in 3 days = ((1/96) x 16 x 3) = 1/2 Remaining work = 1 – 1/2 = 1/2 (6 adults+ 4 children)’s 1 day’s work = 6/96 + 4/192 = 1/12 1/12 work is done by them in 1 day. 1/2 work is done by them in 12 x (1/2) = 6 days.
Q: Two pipes A and B can fill a tank in 15 min and 20 min respectively. Both the pipes are opened together but after 4 min, pipe A is turned off. What is the total time required to fill the tank ? 2215 05b5cc6e0e4d2b4197774eb48
5b5cc6e0e4d2b4197774eb48- 115 min 20 sec.false
- 216 min 40 sec.false
- 313 min 10 sec.false
- 414 min 40 sec.true
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Answer : 4. "14 min 40 sec."
Explanation :
Answer: D) 14 min 40 sec. Explanation: Part filled in 4 minutes = 4(1/15 + 1/20) = 7/15 Remaining part = 1 - 7/15 = 8/15 Part filled by B in 1 minute = 1/20 1/20 : 8/15 :: 1 : k k = (8/15 )x 1 x 20 = 10( 2/3) min = 10 min 40 sec. The tank will be full in (4 min. + 10 min. 40 sec) = 14 min 40 sec.