Subject
Quantitative Aptitude
Topic
Speed & Distance
A man performs (3/5) of the total journey by rail, 7/20 by bus and the remaining 6.5 km on foot. His total journey is -
A man performs (3/5) of the total journey by rail, 7/20 by bus and the remaining 6.5 km on foot. His total journey is -
ক)
65 kmখ)
100 kmগ)
120 kmঘ)
130 kmExplanation
(প্রশ্ন-এক ব্যক্তি তাঁর সম্পূর্ণ ভ্রমণের (3/5) অংশ ট্রেনে চড়ে, (7/20) অংশ বাসে চড়ে, এবং 6.5 কিলোমিটার পায়ে হেঁটে পাড়ি দেয় । তাঁর মোট যাত্রাপথ কত কিলোমিটার ছিল?) ধরি, তাঁর মোট যাত্রাপথের দূরত্ব ছিল x কিলোমিটার ট্রেনে যায় = (3/5)x km বাসে যায় = (7/20)x km পায়ে হেঁটে যায় = 6.5 km মোট দূরত্ব = [(3x/5)+(7x/20)+6.5] = (12x+7x+130)/20} প্রশ্নমতে, {(12x+7x+130)/20} = x => 19x + 130 = 20x ∴ x = 130 kmRelated questions
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:Speed of a boat in standing water is 9 kmph and the speed of the stream is 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:two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1/10 km and 9 km respectively. The time taken by slower train to cross the faster train in seconds is -A man can row three-quarters of a kilometre against the stream in 11×(1/4) minutes and down the stream in 7×(1/2) minutes. The speed (in km/hr) of the man in still water is:In a 300 m race A beats B by 5 metre or 6 seconds. B's time over the course is -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?A boat covers a certain distance downstream in 1 hour, while it comes back in 1x(1/2) hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?A man buys tk 20 shares paying 9% dividend. The man wants to have an interest of 12% on his money. The market value of each share is-