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Let the number of boys and girls in the school in 2022 be '8m' and '7m', respectively. ATQ: (8m - 50 + 90) :(7m - 80 + 30) = 4:3 Or, (8m + 40) ÷ (7m - 50) = (4/3) Or, 3 X (8m + 40) = 4 X (7m - 50) Or, 24m + 120 = 28m - 200 Or, 4m = 320 So, 'm' = 80 Therefore, sum of number of boys and girls in the school in 2022: = 8m + 7m = '15m' = 15 X 80 = 1,200
‘M $ K’ means ‘M is the mother of K’.
‘M # K’ means ‘M is the father of K’.
‘M @ K’ means ‘M is the husband of K’....
If 'A # B' means A is the brother of B, 'A $ B' means A is the mother of B, 'A % B' means A is the spouse of B, then which of the following expressions...
If J & I @ H + G is true then, how is G related to J?
'R - S' means 'R is the brother of S'
'R # S' means 'R is the daughter of S'
'R * S' means 'R is the father of S'
'R $ S' means 'R ...
If F % G means F is the sister of G, F # G means F is the mother of G, F @ G means F is the son of G, F $ G means F is the daughter of G. In the given e...
'A@B' means 'A is the father of B'. 'A#B' means 'A is the sister of B'. 'A$B' means 'A is the brother of B'. 'A%B' means 'A is the wife of B'.
If...
If ‘E # F + D + A * B & C’ is true, then how is D related to C?
'A + B' means 'A is the sister of B'. 'A - B' means 'A is the brother of B'. 'A X B' means 'A is the father of B'. 'A ÷ B' means 'A is the wife of B'. ...
‘R&S’ means ‘R is husband of S’.
‘R%S’ means ‘R is wife of S’.
‘R@S’ means ‘R is father of S’.
‘R#...
