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Seven years ago, let daughter's age be x yrs,then Prachi's age = 4x Acc to question, 4 yrs from now, (4x + 7 + 4) = (5/2) x (x + 7 + 4) 5x + 55 = 8x + 22 x = 11 Now, present ages of prachi and her daughter, Daughter's age = 11 + 7 = 18 Prachi's sge = 44 + 7 = 51 Required answer = 51 + 18 = 69 yrs
A man running at the speed of 6 kmph was over taken by the train moving with the speed of 78 kmph in 20 seconds. Find the length of train.
Find the values of 'a' and 'b', so that the polynomial x3 − ax2 − 13x + b has (x−1) and (x+3) as factors:
If x = a(b - c), y = b(c – a) and z = c(a - b) , find the value of (x/a)3 + (y/b)3 + (z/c)3?
if √1+x/121 = 13/11 then find the value of x.
A carriage travelling in fog passed along a man who was walking @ 6 km/hr in the same direction. He could see the carriage for 8 minutes and it was visi...
If 10% of 24% of x is 240, then x = ?
