7. Roma purchase grocery for \( ₹ 783.65 \) and gave \( ₹ 1000 \) to the shopkeeper. What amount \( d \) shopkeeper return back? 8. Rainfall during three consecutive days was \( 41.08 \mathrm{~cm}, 62.15 \mathrm{~cm} \) and 28.58 cm . What was th

11 Rana, 360 sayfalik bir romanın önce \( \frac{1}{6} \) 'sırı sonra kalan kısmın \( \frac{2}{3} \) '0no okumuşur. Buna göre Rana'hır okumadığı kısım kaç sayfadir?

\( 2 \frac{1}{\times 4}-\frac{1}{2} \) isleminin sonucu kactır? \( \begin{array}{llll}\text { A) } \frac{-7}{4} & \text { B) } \frac{-5}{2} & \text { C) } \frac{5}{2} & \text { D) } \frac{7}{4}\end{array} \)

List all the prime numbers less than 20.

एक व्यक्ति 6000 रुपये का चावल खरीदता है। उसने \( 1 / 3 \) भाग \( 20 \% \) हानि पर, \( 2 / 5 \) भाग \( 25 \% \) लाभ पर बेचा। \( 10 \% \) का कुल नाभ प्राप्त करने के लिए, उसे शेष चावल कितने प्रतिशत लाभ पर से चने चाहिए?

Si \( a = -10 \), ¿cuál es \( |a| \)?