Hello Aspirants. Welcome to Online Quants Section in AffairsCloud.com.We are Starting Stratus –IBPS Clerk course 2016 and we are creating question sample in Quatitative Aptitude section, Which will be asked in IBPS Main Prelims Exam.
Two liquids are mixed in the ratio 3 : 5 and the mixture is sold at Rs. 12 per kg at 20% profit, if the first liquid costs Rs. 2 more per kg than the second, what is the cost of first liquid per litre?
Correct
EXPLANATION
C.P of mixture= 100/120 * 12 = Rs. 10
Let Cost of second liquid be Rs. X
Then cost of first liquid is Rs. X+2
3(2+X) + 5X/8 = 10
6+3x+5x= 80
8x= 74
X= 9.25
Cost of first liquid = 9.25+2= 11.25
Incorrect
EXPLANATION
C.P of mixture= 100/120 * 12 = Rs. 10
Let Cost of second liquid be Rs. X
Then cost of first liquid is Rs. X+2
3(2+X) + 5X/8 = 10
6+3x+5x= 80
8x= 74
X= 9.25
Cost of first liquid = 9.25+2= 11.25
Question 7 of 10
7. Question
1 points
Category: Quantitative Aptitude
Mithun has two bags (A & B) that contain green and blue balls. In the Bag ‘A’ there are 8 green and 6 blue balls and in the Bag ‘B’ there are 6 green and 8 blue balls. One ball is drawn out from any of these two bags. What is the probability that the ball drawn is blue?
Correct
EXPLANATION
Total balls in A bag = 14, Total balls in B bag = 14
A bag contains 6 blue balls; B bag contains 8 blue balls
(Probability of choosing one bag out of two = 1/2)
The probability of getting blue ball from A bag = 1/2(6c1/14c1) = 3/14
The probability of getting blue ball from B bag = 1/2(8c1/14c1) = 2/7
Total Probability = 3/14 + 2/7 = 7/14 = ½
Incorrect
EXPLANATION
Total balls in A bag = 14, Total balls in B bag = 14
A bag contains 6 blue balls; B bag contains 8 blue balls
(Probability of choosing one bag out of two = 1/2)
The probability of getting blue ball from A bag = 1/2(6c1/14c1) = 3/14
The probability of getting blue ball from B bag = 1/2(8c1/14c1) = 2/7
Total Probability = 3/14 + 2/7 = 7/14 = ½
Question 8 of 10
8. Question
1 points
Category: Quantitative Aptitude
The radius of a wheel of car is 140 cm. How many revolutions per minute the wheel will make in order to keep a speed of 66 km/hr?
Correct
Explanation:
Distance to be covered in 1 min = 66*(1000/60) = 1100 m
140 cm = 1.4 m
Circumference of wheel = 2*(22/7)*1.4 = 8.8 m
Number of revolutions = (1100/8.8) = 125
Incorrect
Explanation:
Distance to be covered in 1 min = 66*(1000/60) = 1100 m
140 cm = 1.4 m
Circumference of wheel = 2*(22/7)*1.4 = 8.8 m
Number of revolutions = (1100/8.8) = 125
Question 9 of 10
9. Question
1 points
Category: Quantitative Aptitude
A boatman goes 4 km against the current of the stream in 1 hour and goes 1 km along the current in 10 minutes. How long will it take to go 15 km in stationary water?
Correct
Explanation:
Rate downstream = 1*60/10 = 6 km/hr
Rate upstream = 4 km/hr
Speed in still water = (6+4)/2 = 5 km/hr
Required time = 15/5 = 3 hrs
Incorrect
Explanation:
Rate downstream = 1*60/10 = 6 km/hr
Rate upstream = 4 km/hr
Speed in still water = (6+4)/2 = 5 km/hr
Required time = 15/5 = 3 hrs
Question 10 of 10
10. Question
1 points
Category: Quantitative Aptitude
15 percent of the voters in an election did not cast their votes. In this election there are only two candidates. The winner by obtaining 48% of the total votes and defeated his rival by 22000 votes. The total number of votes in the election
Correct
Explanation:
15% didn’t cast their vote. 48% of total votes get by the winning candidates, so remaining 37% will be scored by his rival. So,
(48/100 – 37/100)*P = 22000
P = 200000
Incorrect
Explanation:
15% didn’t cast their vote. 48% of total votes get by the winning candidates, so remaining 37% will be scored by his rival. So,
(48/100 – 37/100)*P = 22000
P = 200000