Arithmetic Mcqs

Q.  If the average marks of three batches of 55, 60 and 45 students respectively is 50, 55, 60, then the average marks of all the students is__________?

a. 53.33
b. 54.68
c. 55
d. None of these


ANSWER: See Answer
 
Required average = (55 x 50 + 60 x 55 + 45 x 60) / (55 + 60 + 45)
= (2750 + 3300 + 2700) /160
= 54.68 is correct Answer
MCQs:  A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. What is the total distance traveled by the man?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man swims downstream 30 km and upstream 18 km taking 3 hours each time, what is the speed of the man in still water?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A boat can move upstream at 25 kmph and downstream at 35 kmph, then the speed of the current is_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row upstream at 25 kmph and downstream at 35 kmph, and then find the speed of the man in still water?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man’s rate is________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The speed of the stream is________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A person can swim in still water at 4 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  If a man rows at the rate of 5 kmph in still water and his rate against the current is 3.5 kmph. then the man’s rate along the current is__________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man takes twice as long to row a distance against the stream as to row the same distance in favour of the stream. The ratio of the speed of the boat (in still water) and the stream is________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  Speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph. A man rows to a place at a distance of 105 km and comes back to the starting point. The total time taken by him is_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row three-quarters of a kilometre against the stream in 11 minutes and down the stream in 7 minutes. The speed (in km/hr) of the man in still water is:_________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A boatman goes 2 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 5 km in stationary water?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A man can row 9 1/3 km/hr in still water and he finds that is thrice as much time to row u p than as to row down the same distance in river. The speed of the current is:________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A boat travels upstream from B to A and downstream from A to B in 3 hours. If the speed of the boat in still water is 9km/hr and the speed of the current is 3km/hr, the distance A and B is:_______?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  The speed of a boat in still water is 2km/hr. If its speed upstream be 1km/hr then speed of the stream is________?
Category: Mathematics Quizzes,   Published by: T-Code Scripts
MCQs:  A boat takes half time in moving a certain distance downstream than upstream. What is the ratio between the rate in still water and rate of current?
Category: Mathematics Quizzes,   Published by: T-Code Scripts