6) ¿Cuántos ceros inútiles hay en: 0001, 0002, \( 0003 . . . . . . . . . . . . . . . . . . . .7000 ? ~ \) \( \begin{array}{llll}\text { A) } 1107 & \text { B) } 1108 & \text { C) } 1109 & \text { D) } 1110\end{array} \)

R W SOLVER EL SIGUIENTE EIERCICIO COMBINADO DE NUMEROS ENTEROS APLICT REGLA DE LOS SIGNOS \[ (5-8)^{2}+\sqrt{3.5+10}-(14: 2-9)^{3}= \]

a) \( \frac{2}{5}+\frac{1}{4}+\frac{3}{10}= \)

5. a) Puja Limbu did 8 out of 10 math problems and Raju Lama did 11 out of 15 similar math problems. Express the number of problems solved by each of them in fractions and identify who did better performance.

12. Бастапқыда құны А теңге болатын кітап 30\%-ға қымбаттады. Одан кейін тағы 10\%-ға қымбаттап, ең соңында 50\%-ға арзандады. Кітаптың бағасы қанша теңге болды? (A) \( 0,9 A \) (B) \( 0,885 A \) (C) \( 0,785 A \) (D) \( 0,715 A \)

Puja Limbu did 8 out of 10 math problems and Raju Lama did 11 out of 15 similar math problems. Express the number of problems solved by each of them in fractions and identify who did better performance.