9. Lebensmittelhändler Müller kauft 240 Eier zu 23. Rp, pro Stück. Während des Transportes zerbrechen \( \frac{7}{40} \) der Eier. In seinem Laden kann er nur \( \frac{8}{9} \) der unbeschädigten Eier verkaufen, und zwar für 55 Rp. pro Stück. Wie gross ist sein Gewinn?

b) Let's take a number 260 . (i) Find the square root of 260 by division method. (ii) What is the remainder left in this process? (iii) Subtract the remainder from 260 . Is the difference a perfect square? Section - B

A train leaves New Delhi at 1915 hours and arrives Mathura at 2205 hours. The distance between two stations is 144 km . Find the speed of the train.

b) Let's take a number 260 . (i) Find the square root of 260 by division method. (ii) What is the remainder left in this process? (iii) Subtract the remainder from 260 . Is the difference a perfect square?

Знайди значення виразу зручним способом: \( \begin{array}{ll}\text { 1) }(7895+5149)-4895 ; & \text { 2) }(227+959)-759 ; \\ \text { 3) } 5797-(4797+270) ; & \text { 4) } 1541-(150+541) .\end{array} \)

7. \( \frac{2}{3}, \frac{1}{4} \) and \( \frac{1}{6} \) are three given rational numbers. Answer the following questions, a) List out the terminating and non-terminating recurring decimals of these rational numbers. b) What is the multiplicative identify of \( \frac{2}{3} \) ? c) Use the given rational numbers to verify the associative properties of addition and multiplication of rational numbers.