Aptitude Preparation Questions and Answers for Competitive Exams

Selective Aptitude Preparation Questions and Answers:

Q.21.The time for a train of length 110 metres running at the speed of 72 km/hr to cross a bridge of length 132 metres is

 (A) 9.8 sec
 (B) 12.1 sec
 (C) 12.42 sec
 (D) 14.3 sec
 

Q.22.The difference between the selling prices of an article sold at 4% and 3% profits is 3. The cost price of the article is :

 (A)  400
 (B)  350
 (C)  300
 (D)  100
 

Q.23.The thread of a kite makes 60° angle with the horizontal plane. If the length of the thread be 80 m, then the vertical height of the kite will be

 (A) 40/3 m
 (B)  80/√3 m
 (C) 80 m
 (D) 40/√3 m

Q.24.On 24th May 2008 the maximum temperature of Delhi, Kolkata and Mumbai were recorded as 35°C, 33°C and 34°C respectively. What was the maximum temperature of Chennai so that the average maximum temperature of those cities would be 35°?

 (A) 34° C
 (B) 35° C
 (C) 36° C
 (D) 38° C

Q.25.In a triangle PQR, PQ = PR and ∠Q is twice that of ∠P. Then ∠Q is equal to

 (A) 72°
 (B) 36°
 (C) 144°
 (D) 108°

Q.26. If the ratio between the profit and sale price of an article is 1:5, then the ratio between the sale price and the cost price of that article is:

 (A) 3:2
 (B) 4:3
 (C) 5:4
 (D) 6:5

Q.27.An office opens at 10 AM and closes at 5 PM. The lunch interval is 30 minutes. The ratio of lunch interval to the total period of office hours is

 (A) 1:7
 (B) 1:14
 (C) 7:1
 (D) 14:1

Q.28.The sum of two positive integers is 80 & difference between them is 20. Then what is difference of squares of those numbers ?

 (A) 1400
 (B) 1600
 (C) 1800
 (D) 2000
 

Q.29. In  ∆ABC, DE || BC such that AD/BD = 3/5. If AC = 5.6 cm, then AE is equal to 

 (A) 4.2 cm
 (B) 3.1 cm
 (C) 2.8 cm
 (D) 2.1 cm

 Q.30.If x2+y2+z2 = 14 and xy + yz + zx = 11, then the value of (x+y+z)2 is

 (A) 16
 (B) 25
 (C) 36
 (D) 49

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