#class7 #mlaggarwal chapter 6/7 #ratioandproportion #basi exercise 6.1/7.1 question 7,8,9,10,11,12

#class7 #mlaggarwal chapter 6/7 #ratioandproportion #basic exercise 6.1/7.1 question 7 (7) 5 grams of an alloy contains 15/4 grams copper and the rest is nickel. Find the ratio by weight of nickel to copper. question 8 A pole of height 3 metres is struck by a speeding car and breaks into two pieces such that the first piece is 1/2 of them second. Find the length of both pieces. (9) Heights of Anshul and Dhruv are 1.04 m and 78 cm respectively. Divide 35 sweets between them in the ratio of their heights question 10 Rs. 180 are to be divided among three children in the ratio 1/3 : 1/4 : 1/6. Find the share of each child. (11) A natural number has been divided into two parts in the ratio 7:11. If the difference of two part is 20, find the number and two parts. (12) A certain sum of money has been devided into two parts in the ratio 9:13. If the second part is Rs. 260, find the total amount.