Related Questions

In a sample of 50 people, 19 had type O blood, 22 had type A blood, 7 had type B blood and 2 had type AB blood. If a person is selected randomly, find the probability that the person has neither type A nor type O blood?
A 15/25
B 31/50
C 11/25
D 9/50
Type 1 workers can do three times the work of Type 2 workers. Twelve Type 1 workers can complete a task in 10 days. How many days would it have taken 4 Type 1 and 8 Type 2 workers to complete the same task?
A 16
B 17
C 20
D 18
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank?
A 33.5%
B 37.5%
C 40%
D 50%
An empty fuel tank of a car was filled with A type petrol. When the tank was half-empty, it was filled with B type petrol. Again when the tank was half-empty, it was filled with A type petrol. When the tank was half-empty again, it was filled with B type petrol. What is the percentage of A type petrol at present in the tank ?
A 33.5%
B 37.5%
C 40%
D 50%
A company produces five types of shirts -- A,B,C,D and E-using cloth of three qualities -- high, medium and low , using dyes of three qualities-- high, medium and low. One shirt requires 1.5 m of cloth .The following table gives respectively : The number of shirts (of each category) produced, in thousands. The percentage distribution of cloth quality in each type of shirt, and The percentage distribution of dye quality in each type of shirt. What is the ratio of low quality dye used for C-type shirts to that used for D-type shirts ?
A 2:3
B 1:2
C 2:1
D 3:2
Sumon had to type 80 pages per day to complete an assignment. He could type only 60 page per day and is left with 2000 pages to type in the last 10 days. For how many days has Sumon been typing?
A 50
B 60
C 70
D None
Amira can type 720 words in sixteen minutes, Reya can type 820 words in 18 minutes ans Zunaira can type 798 words in 19 minutes. Whos is/are the fastest typist (s)?
A Amira
B Zunaira
C Raya
D Both Amira and Raya
Rony and Jony are working on an assignment. Rony takes 6 hours to type 32 page on a computer, while Jony takes 5 hours to type 40 pages. How much time will they take, working together on two different computers to type an assignment of 110 pages?
A 7 hr 30 min
B 8 hr
C 8hr 15 min
D 8 hr 25 min
Susan can type 10 pages in 5 minutes. Mary can type 5 pages in 10 minutes. Working together , how many pages can they type in 30 minutes ?
A 15
B 20
C 25
D 65
Karm can type 10 pages in 5 minutes. Rahim can type 2 pages in 10 minutes Working together, how many pages can they type in 30 minutes?
A 15
B 20
C 25
D 65

Next steps