Initial quantity of water in the mixture = 150 × (3/5) = 90 litres After removing 20 litres of the mixture, quantity of water = (150 – 20) × (3/5) = 130 × (3/5) = 78 litres Therefore required ratio = 78:65 = 6:5
if 2x +3y =7 and 2x+2 -3y+2 =7, then find the value of x and y.
Fing the value of:
[(1024)(n/5) × (4)(2n+1) ] / [(16)n × (4)(n-1) ]
If 1/(x+ 1/(y+ 1/z)) = 13/30, then find x+y+z= ?
48 24 24 48 ? 1536
...If x + y + z = 20, x² + Y² + z² = 160 and x z = y², then find the value of x z?
If x = √7 + √6 and y = √7 - √6 , then the value of is (x2 + y2)/(x3 + y3).
...Find ‘x’ if (x³+3x)/(3x²+1) = 189/61
If x3 + y3 = 9 and x + y=3 then the value of x4 + y4 is:
If (a – 8) 2 + (b + 2) 2 + (c – 3) 2 = 0, then find the value √(a +b + c).
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