Question

3.Write the multiplicative inverse of [4/9] x [2/3]……………………………………………………………….…….(3)
4.Write the name of the property in full , of the following : X = 1 = X ………….(1)
5.Check that a ÷ b ≠ b ÷ a for the values a = 5/8 and b = -5/16………………………………………………(3)
6.Find the product of multiplicative inverses of ─9/11 and 22/3……………………………………………...(3)
7. Represent on separate numberlines by any of the methods taught : a) -4.3 b) 3 …………….(2)
8.Find 1 rational numbers between 1/3 and (-1/4) using decimal method………………………………….(2)
9.Find 1 rational numbers between ¼ and 3/8 using average method ……………………………………….(2)
10. Solve : “Ayush takes half an hour to reach his school from his home, if he walks at a uniform speed of 3
km/h. Find the distance of his school from home…………………………………………………………………………(4)
11. A rectangular plot of land is 25 mtrs long and 15 mtrs wide . Find the perimeter and area of the
plot……………………………………………………………………………………………………………………………………………….(5)

Answer 1

Answer:

5). a÷b = -2

b÷a = -1/2

10). school is 1.5km from his home

11). area = l×b = 25×15 = 325 sq.mt

perimeter = 2× l+b = 80 mt