Related Questions

২টি সংখ্যার অনুপাত হচ্ছে ৫ঃ৪ এবং তাদের পার্থক্য ১০, বড় সংখ্যাটি কত?
A ৪০
B ১০
C ৫০
D ২০
ধান ও ধান উৎপন্ন চালের অনুপাত ৪ঃ৩ এবং গম ও গম থেকে উৎপন্ন সুজির অনুপাত ৫ঃ৪ হলে ১ কুইন্টাল ধান থেকে উৎপন্ন চাল ও ১ কুইন্টাল গম থেকে উৎপন্ন সুজির অনুপাত কত?
A ১৬:১৫
B ১৫:১৬
C ১৫:১৪
D ১৫:১৭
When walking a certain person takes 16 complete steps in 10 seconds. At this rate, how many complete steps does the person take in 72 seconds?
A 45
B 78
C 86
D 99
Mr. Ali decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured from the moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
A 23 steps
B 16 steps
C 46 steps
D 26 steps
Why does a sprinter keep running even after crossing the finishing line?
A He wants to make sure that he crosses the line
B Inertia of rest takes some time to make him stop
C Inertia of motion keeps him moving
D Friction between his shoes and the ground causes him to move beyond the line
A short distance athlete has taken 60 seconds to cover 100 meters . If he makes 30 steps in 9 seconds , how many steps has he taken in that time?
A 130
B 170
C 173
D None of these
Machine A produces bolts at a uniform rate of 120 every 40 seconds and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously , how many seconds will it take for them to produce a total of 200 bolts.
A 22
B 25
C 28
D 32
Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every 20 seconds. If the two machines run simultaneously, how many seconds will it take for them to produce total of 200 bolts?
A 22
B 25
C 28
D 32
A train takes 20 seconds to cross a pole. It takes 50 seconds to cross the platform. What is the ratio of the length of the platform to that of the train?
A 2 : 3
B 2 : 5
C 5 : 2
D 3 : 2
E None
At Uttara High school each student studies exactly one foreign languages. Three-fifth of the students take Spanish and one-fourth of the remaining students take take German. If all of the others take French, What percent of the students take French?
A 10
B 30
C 20
D 25

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