Related Questions

A class of 50 girls and 60 boys sponsored a football game . If 52% of the girls and 30% of the boys attended the game, what percentage of the class went to the game?
A 44%
B 55%
C 40%
D 35%
The ratio of boys to girls in class A is 3 to 4 . The ratio of boys to girls in class B is 4 to 5 . If the two classes were combined, the ratio of boys to girls in class B is two less than the number of girls in class A. How many girls are in class A?
A 87
B 11
C 12
D 15
John, Jack, Joseph and Jordan participated in a running race. Only the winner finished the race in 10 minutes. Which two pieces of information can tell you who the winner was? (i) John finished the race in 16 minutes . (ii) Joseph finished the race earlier than Jack by 2 minutes. (iii) Jack finished the race later than Jordan by 4 minutes. (iv) Jordan finished the race earlier than John by 6 minutes. (v) John finished the race later than Joseph by minutes.
A I and II
B I and IV
C II and III
D II and V
The ratio of boys to girls in a class 2/5. If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1/4. Originally, how many girls were in the class?
A 16
B 20
C 21
D 24
The ratio between boys and girls in a class is 2 : 5 . If 2 boys leave and 4 girls join the class, the ratio of the boys to the girls becomes 1 :4 what is the original number of girls in the class?
A 15
B 20
C 18
D 25
A can complete a certain work in 4 minutes, B in 5 minutes, C in 6 minutes, D in 10 minutes and E in 12 minutes. The average number of units of work completed by them per minute will be
A 0.40
B 0.16
C 0.80
D None of these
Ten fabrics of different colors are displayed on ten racks in a cloth store. The racks are placed one after another and numbered consecutively from one to ten. Each rack contains fabric of a single color. One fabric is green , two fabrics are brown , three fabrics are purple and remaining four fabrics are red. If a purple fabric is on rack two and red fabrics are on racks three and four , the green fabric must be on which of the following racks?
A Five
B Six
C Seven
D Eight
Answer the questions on the basis of the information given below. Four sisters---Jahera, Sabera, Firoza, and Tahera are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister had TK. 32. With how much taka did Jahera start?
A Tk. 60
B Tk. 34
C Tk. 66
D Tk. 28
Initial pressure of oxygen introduced into the 'bomb' of the bomb calorimeter for determination of calorific value of coal/fuel oil may be around __________ atm.
A 3-5
B 25-30
C 60-65
D 95-100
The 'bomb' in the bomb calorimeter is made of
A Molybdenum stainless steel
B Mild steel
C High silicon iron (14% Si)
D Copper

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