'A' sold an article to 'B' at a profit of 20%. 'B' sold the same article to 'C' at a loss of 25% and 'C' sold the same article to 'D' at a profit of 40%. If 'D' paid Rs 252 for the article, then find how much did 'A' pay for it?
Let the article costs 'X' to ACost price of B = 1.2XCost price of C = 0.75(1.2X) = 0.9XCost price of D = 1.4(0.9X) = 1.26X = 252Amount paid by A for the article = Rs. 200.
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Find the Next Number in the given number series?
3, 10.5, 36.75, 128.625, ?
Pattern is
1, 2, 8, 33, ?
Find the next number in the given series?
1 x 1 + 1 x 1 = (1 + 1) = 2
2 x 2 + 2 x 2 = (4 + 4) = 8
8 x 3 + 3 x 3 = (24 + 9) = 33
33 x 4 + 4 x 4 = (132 + 16) = 148
148 x 5 + 5 x 5 = (740 + 25) = 765.
Find the odd man out of the series?
128, 32, 14, 2.66, 0.88
Here the given series is 128, 32, 14, 2.66, 0.88
128 / 4 = 32
32 / 3 = 10.666
10.666 / 4 = 2.666
2.666 / 3 = 0.888
Hence, the odd man in the given number series is 14.
On selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 balls. The cost price of a ball is ?
Let the cost price of a ball is Rs.xGiven, on selling 17 balls at Rs. 720, there is a loss equal to the cost price of 5 ballsThe equation is :17x - 720 = 5xSolving the equation we get x = 60Therefore, cost price of a ball is Rs. 60.
Complete the number series given below ?
13 19 37 ? 141 243
The given series follows the pattern that
So the missing number is 37 + 38 = 75
75 + 66 = 141
....
If the mean of a, b, c is M and ab + bc + ca = 0, then the mean of a2+b2+c23 is :
We have : ( a + b + c) / 3 = M or (a + b + c) = 3M.
Now. a+b+c2=3M2=9M2 .
<=>a2+b2+c2+2ab+bc+ca=9M2
a2+b2+c2=9M2 ,(ab+bc+ca=0)
Required mean =a2+b2+c23=9M23=3M2 .
Artists are generally whimsical. Some of them are frustrated. Frustrated people are prone to be drug addicts.
Based on these statements which of the following conclusions is true?
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True or False
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