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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Ans 1:
Class : Class 4
divide 2304 by 4. the quotient so obtained is 576. Now, divide 576 by 6... we get the quotient as 96. So, any no. greater than 96 is the answer... in this case it is 106.
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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