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Total money = Rs.[650 x (25/100) + 1300 x (50/100)] = Rs. 812.5 25 paise coins removed = Rs. (650 x 19%) = 123.5 50 paise coins removed = Rs. (1300 x 38%) = 494 Money removed =Rs. {123.5 x (25/100) + 494 x (50/100)} = Rs. 277.875 Required percentage = (277.875/812.5) x 100 = 34.2%
Which of the following statements is correct?
I. If x = 12, y = –2 and z = –10, then x³ + y³
+ z³ = 360
II. If x + y = 48 an...
If {x + (1/x)} = 7, then find the value of {x2 - (1/x)2}.
Three mixtures: A, B, and C containing 25%, 35%, and X% of water, respectively. If all these mixtures are mixed in the ratio of 1:3:2 to form a resultan...
(15 x 15 x 15 + 8 x 8 x 8)/(15 x 15 -15 x 8 + 8 x 8) = ?
If (5x + 2)3 + (x – 1)3 + 8(3x – 7)3 = 6(5x + 2) × (x – 1) × (3x – 7), then the value of (5x + 3) is
...If 1/(x+ 1/(y+ 1/z)) = 13/30, then find x+y+z= ?
If for non-zero x, x² - 4x - 1 = 0, what is the value of x² + 1/x²?
When 732 is divided by a positive integer x, the remainder is 12. How many values of x are there?
If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3)
Then find out the value of (x²+y²-xy)/(x²+y²+xy)
