Subject :IMO Class : Class 4
Subject :IMO Class : Class 7
Ans 1:
Class : Class 8
the correct answer is B.
there are two small semicircles that form one circle when joined. so after joining it forms 1 circle with a diameter of 14 which means it has a radius of 7.
area= 7*7*(22/7)= 154
in the big semicircle it has a diameter of 28 which means it has a radius of 14.
area = (14*14*22)/(7*2) = 616
area of shaded part = 616-154= 462
thus the correct option is B
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Subject :IMO Class : Class 6
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Subject :IMO Class : Class 4
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 3
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Subject :IMO Class : Class 4
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Subject :IMO Class : Class 6
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Subject :IMO Class : Class 6
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Subject :IMO Class : Class 3
The table below shows the prices of different numbers of oranges at a fruit stand.
Orange prices
Number of oranges |
Price in Rs |
1 |
7 |
3 |
21 |
5 |
35 |
7 |
49 |
9 |
? |
If the pattern in the table continues, what will be the price of 9 oranges ?
(A) Rs 50
(B) Rs 63
(C) Rs 70
(D) Rs 56