Related Questions

A potato tuber has been cut into two halves. A few drops of iodine solution are placed on the cut surface of one of the halves. What colour change will be noticed?
A From brown to blue-black
B From brown to orange-red
C From blue to pink
D From pink to blue-green
A sphere of radius 21 cm is cut into 8 identical parts by 3 cuts (1 cut along each axis). What will be the total surface area (in cm2) of each part?
A 844.5
B 1732.5
C 1039.5
D 1115.6
175×175-2×175×75+75×75175-75= ?
A 10
B 1000
C 100
D 200
175×175-2×175×75+75×75175-75 কত?
A 10
B 100
C 200
D 150
A coil is cut into two halves, the stiffness of cut coil will be
A Double
B Half
C Same
D None of these
Aruna cut a cake into two halves and cuts one half into smaller pieces of equal size. Each of the small pieces is twenty grams in weight. If she has seven pieces of the cake in all with her, how heavy was the original cake ?
A 120 grams
B 140 grams
C 240 grams
D 280 grams
E None of these
A solid cube has side 8 cm. It is cut along diagonals of top face to get 4 equal parts. What is the total surface area (in cm2) of each part?
A 96 + 64\u221a2
B 80 + 64\u221a2
C 96 + 48\u221a2
D 80 + 48\u221a2
When a bar magnet is cut into two equal halves, the pole strength of each piece –
A Becomes double
B Becomes half
C Becomes zero
D Remains the same
A tailor had a number of shirt pieces to cut from a roll of fabric. He cut each roll of equal length into 10 pieces. He cut at the rate of 45 cuts a minute. How many rolls would be cut in 24 minutes ?
A 32 rolls
B 54 rolls
C 108 rolls
D 120 rolls
A square carpet with an area of 169 cm2 must have 2 cm cut off one of its edges in order to be a perfect fit for a rectangular room. What is the area (in cm2) of this rectangular room?
A 117
B 143
C 145
D 165

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