One-fourth of the students of a school play cricket and two-third of the rest play football. The remaining 400 students do not play either of the games. How many students are there in the school?

800

1600

1800

2400

None of these

Description (বিবরণ) :

প্রশ্ন: One-fourth of the students of a school play cricket and two-third of the rest play football. The remaining 400 students do not play either of the games. How many students are there in the school?

ব্যাখ্যা:

Fraction of students playing cricket = 1/4

Fraction of students playing football = 2/3 of (1 - 1/4) = 2/3 x 3/4 = 2/4 = 1/2

Fraction of remaining students = 1 - (1/4 + 1/2) = 1 - (1 + 2)/4 = 1 - 3/4 = 1/4

ATQ, 1/4 of the students = 400

So, total number of students = 400 x 4 = 1600.

Mercantile Bank Ltd Mercantile Bank Ltd - Officer - 2008 গণিত

In a cricket tournament 30,000 tickets were sold. One-fourth of the tickets were sold at TK. 30 each, 1/3 were sold at TK. 25 each, and the remaining tickets were sold at TK. 20 each. How many tickets were sold at TK. 20 each ?

10,000

12,000

12,500

13,500

In the two consecutive numbers one-fourth of the smaller one exceeds one - fifth of the larger one by 3 . The numbers are :

36, 37

13, 12

64, 65

24, 25

75, 76

Two-fifty of one-fourth of three-seventh of a number is 15. What is the half of the number ?

157

175

If 4 is subtracted from one-fourth of a number, the result in 20. Which of the following is the number ---