২৭২৬১
A boy goes to school at a speed of 5 km/h and returns to the village at a speed of 4 km/hr. If he takes 4 hours and 30 minutes in all, what is the distance between the village and the school?
উত্তর
10 km
২৭২৬৪
The average height of girls in a class is 5 ft and that of boys is 5.7 ft. If the average height of the students in class is 5.5 ft, what could be the possible strength of boys and girls respectively in the class.
উত্তর
50, 20
২৭২৬৬
The value of "A" varies in inverse proportion as the square of "B". If the value of "A" is equal to 40 , when "B" is equal to 12. What would be the value of "A" when "B" is equal to 24?
উত্তর
10
২৭২৬৭
একটি ভগ্নাংশের হর ও লবের অনুপাত ৩:২। লব হতে ৬ বিয়োগ করলে যে ভগ্নাংশ পাওয়া যায় তা মূল ভগ্নাংশের 23। ভগ্নাংশটির লব কত?
উত্তর
18
২৭২৬৮
A cistern is normally filled with eater in 10 hours but takes 5 hours longer to fill because of a leak in its bottom. If the cistern is full, the leak will empty the cistern in -
উত্তর
30 hours
২৭২৬৯
P and Q start a hotel. P left after 6 months. After the year ends, P gets Tk. 6000 as profit out of total profit of TK. 9000. What will be amount invested by Q if P had invested TK. 20000?
উত্তর
TK. 5000