২৬৮১১
when 4 is added to one half of a number , the result is 14. what is the number?
উত্তর
20
২৬৮১২
In a city , 40% of the people are illiterate and 60% are poor. Among the rich , 10% are illiterate. What percentage of the poor population is illiterate?
উত্তর
60%
২৬৮১৫
A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. what was the original number?
উত্তর
1,000
২৬৮১৬
In a fraction , if numerator is increased by 40% and denominator is increased by 80% then what fraction of the original is the new fraction?
উত্তর
79
২৬৮১৭
In his pocket , a boy has 3 red marbles , 4 blue marbles , and 4 green marbles , How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each colour?
উত্তর
9
২৬৮১৮
In an examination , 34% of the students failed in Mathematics and 42% failed in English. If 20% of the students failed in both the subjects , then the percentage of students who passed in both the subjects was:
উত্তর
44
২৬৮১৯
The electric company charges Tk. 0.30 per kilowatt -hour (KWH). Rahim used 28000 KWH in April , 32 00 KWH in May, and 36ooo KWH in June. What was his average cost least one of each colour?
উত্তর
Tk. 48
২৬৮২০
A boat travels with a speed of 10 km/hr in still water. If the speed of the stream is 3 km/hr, find the time taken by the boat to travel 52 km downstream.
উত্তর
4 hours