In how many ways 4 boys and 3 girls can be seated in a row so that they are alternate.

Akram has a certain average for 9 innings. In the tenth innings, he scores 100 runs thereby increasing his average by 8 runs. His new average is:

A. 20

B. 21

C. 28

D. 32

How many Permutations of the letters of the word APPLE are there?

A. 60

B. 80

C. 100

D. 120

Find the average of first 97 natural numbers.

A. 47.5

B. 48.5

C. 49.5

D. 50.5

Out of 450 students of a school, 325 play football, 175 play cricket and 50 neither play football nor cricket. How many students play both football and cricket?

A. 75

B. 100

C. 125

D. 150

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 find the percentage of students who passed in both the subjects.

A. 40%

B. 42%

C. 44%

D. 46%