The average weight of 20 boys is. Find thes and that of 32 girls is \( 399 . \mathrm{kg} \). average weight.

\( \frac { n ^ { 6 cm } } { 10 cm } \)

1. You are now 21. You want to have BDT 100,000 at your \( 25^{\text {th }} \). How much you need to deposit today at a bank if the bank provides you \( 10 \% \) interest rate - a. Quarterly b. Bi-monthly c. Which policy should you chose? 2. Beximco has taken loan from DBBL for BDT 2 million. The loan period is 10 years. What should be the periodic instalment if the bank charges \( 12 \% \) interest rate - a. Monthly b. Bi-weekly c. Which one is less costly? 3. Find out the value of X. b. Which term is the value of X? c. Find out the summation of the series. 4. In a class, there are 100 students. 60 students are member of the Art Club, 50 students are \( -\ldots . .-1536 \) member of the Drama Club. If the probability that a randomly selected student is a member of the Drama Club, given that she is a member of the Art Club equals to \( 1 / 2 \). What is the number of students who are the member of both Art and Drama Clubs?

(c) KNO \( { }_{3} \) dissolves in nethanof; this mass \( x \) grams dissulved at \( t \) seconds satisfies the differential equation \[ \frac{d y}{d t}=-0,004 y^{2}+0,8 y \] (i) What is the max amount of satt that will ever dissolve? (ii) If \( y(0)=50 \mathrm{~g} \), how long will it toke an additional sog to dissolve? lii) Draw a phase line using the equilibrium points and state if they ane Stable or unstable.

Задание группе №2. Представьте, что вы учитель обиествознания и вам необходимо объяснить новую тему «Образование» классу. Составьте текст своей лекции, ответив на следуюшие вопросы: (См. §9 пункт «Век живи, век учись») 1. Начните свое выступление с определения образования. 2. Объясните, почему образование является национальным богатством страны. 3. Когда в России формулируется общенациональная образовательная политика? 4. Перечислите 5 задач образовательной политики. 5. Дайте определение термину «самообразование». 6. Перечислите основные формы самообразования.

\( x ^ { 2 } + b ^ { 2 } + 2 b + 1 \)