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Delhi Police Constables (Executive) Exam : Held on 06-Dec-2017 Shift-3 (Numerical Ability)
Delhi Police Constables (Executive) Exam : Held on 06-Dec-2017 Shift-3
(Numerical Ability)
QID : 286 - If 2n = √32, then what is the value of n?
Options:
1) 5/2
2) 3/2
3) 1/2
4) 7/2
Correct Answer: 5/2
QID : 287 - What is the value of 12 + 13 + 14 + …… 30?
Options:
1) 365
2) 399
3) 409
4) 465
Correct Answer: 399
QID : 288 -
Options:
1) 124/5
2) 122/11
3) 120/7
4) 127/15
Correct Answer: 124/5
QID : 289 - What is the largest number that exactly divides 24, 36 and 60?
Options:
1) 8
2) 4
3) 12
4) 16
Correct Answer: 12
QID : 290 - What is the value of 0.12 ÷ 0.03 × 0.01?
Options:
1) 4.01
2) 0.04
3) 0.4
4) 0.0401
Correct Answer: 0.04
QID : 291 - If 60% of a number is added to 200, then the result is the number itself, then what is the number?
Options:
1) 500
2) 250
3) 600
4) 750
Correct Answer: 500
QID : 292 - A mixture contains alcohol and water in the ratio 1 : 5. If it contains 2 litres more water than alcohol, then what will be the quantity (in litres) of water in mixture?
Options:
1) 3.5
2) 1
3) 2.5
4) 0.5
Correct Answer: 2.5
QID : 293 - What is the average of first 12 multiples of 5?
Options:
1) 31.5
2) 33.75
3) 32.5
4) 33.5
Correct Answer: 32.5
QID : 294 - A sum amounts to Rs 5240 in 2 years and amounts to Rs 6288 in 3 years on compound interest. What is the rate of interest (in %) per annum?
Options:
1) 10
2) 20
3) 15
4) 30
Correct Answer: 20
QID : 295 - A trader bought an article for Rs 1400. What should be the selling price (in Rs) of the article to earn a profit of 20%?
Options:
1) 1610
2) 1560
3) 1680
4) 1780
Correct Answer: 1680
QID : 296 - A fan is sold at a discount of 20%. The cost price of the fan is Rs 960. If 30% profit is to be earned, then what should be the marked price (in Rs) of the fan?
Options:
1) 1820
2) 1600
3) 1560
4) 1340
Correct Answer: 1560
QID : 297 - If the area of a circle inscribed in a square is 16π cm2, then what will be the area (in cm2) of the square?
Options:
1) 64
2) 76
3) 25
4) 16
Correct Answer: 64
QID : 298 - The distance between place P and Q is 900 km. A train starts from place P at 8 am at a speed of 25 m/s. The train stops on the way for 1 hour 40 minutes. At what time (in p.m.) train will reach at Q?
Options:
1) 6 : 40
2) 7 : 40
3) 8 : 05
4) 7 : 20
Correct Answer: 7 : 40
QID : 299 - A starts a business by investing Rs 35000. After 5 months B joins the business with an investement of Rs 50000. What will be the ratio of their profit at the end of the year?
Options:
1) 6 : 5
2) 7 : 10
3) 12 : 7
4) 8 : 5
Correct Answer: 6 : 5
QID : 300 - Two taps J and L can fill a tank in 12 minutes and 14 minutes respectively. If an outlet tap K is opened, then all three can together fill the tank in 21 minutes. How much time (in minutes) will tap K take to empty the tank?
Options:
1) 39/4
2) 32/3
3) 28/3
4) 10
Correct Answer: 28/3
