Subject
Quantitative Aptitude
Topic
Simplification
X number of students in a class agreed to donate a total of tk z to a charity.if 4 students drop out,how much more will each of the rest have to contribute so that the total donation remains the same?
X number of students in a class agreed to donate a total of tk z to a charity.if 4 students drop out,how much more will each of the rest have to contribute so that the total donation remains the same?
ক)
z/4-xখ)
4z/(x2-4x)গ)
z/(X+4)ঘ)
none of theseExplanation
Among x students each one gave z/x taka after leaving four , total students (x-4) each of them gave z/x-4 Taka z/x-4-z/x =zx-z(x-4)/x(x-4)=4z/x2-4xRelated questions
The difference of 1 (3/16) and its reciprocal is equal toWhat should come in place of question mark (?) in the following question?
(43% of 2750) – (38% of 2990) =?How many (1/8)s are there in 37 (1/2)?If then the value of x isFind the value -2+(-2)-{-(2)}-2Let a = (4 ÷ 3) ÷ 3 ÷ 4, b = 4 ÷ (3 ÷ 3) ÷ 4, c = 4 ÷ 3 ÷ (3 ÷ 4). The maximum value among the above three isWhat will come in place of the question mark (?) in the following equation?
160 km 80 m ÷ 6 = ?If I = (3/4) ÷ (5/6), II = 3 ÷ [(4 ÷ 5) ÷ 6], III = [3 ÷ (4 ÷ 5)] ÷ 6, IV = 3 ÷ 4 ÷ (5 ÷ 6), then