Worksheet

1. What should be subtracted from 68 1/15 to get 56 1/9

2. Renu Purchased 4 3/5 kg weight of vegetables and 2 7/10 kg weight of fruits, she put them in an empty bag weighing 1/4 kg weight. What is tota weight of the bag now ?

3. Simplify a. 48.9 + 73.803 - 42.09

4. Subtract a. 21 kg 5 g from 65 kg 306 g b. 90 km 34 m from 195 km 9 m

5. How to find the perimeter of an isocles triangle with equal sides of 16 cm and 3rd side equal to 12 cm.

6. Find - The length of a rectangular plot of land is twice its breadth. If the perimeter of the plot is 360 m. Find its area

7. How to draw an angle 142 degree and bisect it. ( Write it step by step )

1

Answers

2015-01-06T17:14:56+05:30
Solution for the worksheet;
1).  
68 \frac{1}{15} -x=56 \frac{1}{9}  \\ \\  or, \frac{(68*15+1)}{15} -x= \frac{(56*9+1)}{9}  \\  \\ or, \frac{1021}{15} -x= \frac{505}{9}  \\  \\ x= \frac{1021}{15} - \frac{505}{9}  \\  \\ x= \frac{(1021*3-505*5)}{45} = \frac{3063-2525}{45} \\  \\ x= \frac{538}{45}

2). 
Total weight bag = (Weight of vegetable)+ (weight of fruit) + (weight of            empty bag)
            Total weight(W) = 4 \frac{3}{5} +2 \frac{7}{10} + \frac{1}{4}
            W =  \frac{60}{5} + \frac{140}{10} +1/4 = 12+14+0.25 = 26.25 kg

3). 48.9 + 73.803 - 42.09 = 48.900 + 73.803 - 42.090
                                         = 122.703 - 42.090
                                         = 80.613   

5).  Perimeter of isosceles = 2(Equal sides) + (Third side)
                                          = 2(16)+12 
                                          = 32+12
                                          = 44 cm
6). Perimeter of rectangular plot = 2(length + breadth)
A/q     length(l) = 2{beadth(b)}
          Perimeter of plot = 2(l+b) = 2(2b+b)
   or,                   360 =  6b 
    or,                       b = 60 m
                          and l = 2b = 120 m 
               Now,
                   Area of the plot = l×b = 60×120
                                            =  7200 m²
7).  sorry,I don't know it
1 2 1
not so clear
oh ,But where are you confused ? tell me ,I'll do it .
everything