২৬৮৬১
the average of 5 numbes is 40. If 2 more numbers with an avearge of 21, are added to these numbers, What will be the average of the combined 7 numbers?
উত্তর
34.57
২৬৮৬২
A merchant was selling an item at a price then marked it down 20% for a spring sale. During the summer, he marked the item down another 20% from its spring price. If the item sold at the summer price, What percent of the orginal price di it sell for?
উত্তর
64%
২৬৮৬৩
The sale price of an article including the sales tax is TK. 616. The rate of sales tax 10% If the shopkeeper has made a profit of 12% , then the cost price of the article is:
উত্তর
Tk. 500
২৬৮৬৫
An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in 123 hours , it must travel at a speed of:
উত্তর
600 kmph
২৬৮৬৬
Today jishan is twice as old as Farid and Samsu is 2 younger than Farid four years ago Jishan was 4 times as old as Samu. How old is Jishan now?
উত্তর
20
২৬৮৬৭
A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:
উত্তর
155°
২৬৮৬৮
There are 8 job applicants sitting in a waiting room, of which four are women and four are men. If two of the applicants are selected at random, what is the probability that both will be women?
উত্তর
3/14
২৬৮৬৯
A class of 50 girls and 70 boys sponsored a party. If 40% of the girls and 50% of the boys attended the party, approximately what percent of the attended?
উত্তর
46