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ATQ, Let the efficiency of a man and a women be 'a' and 'b' units/day respectively Then, [(32a + 28b) × 60]/1 = [(40a + 28b) × 40]/(4/5) 192a + 168b = 200a + 140b (a/b) = (7/2) Total work = [((32 × 7) + (28 × 2)) × 60] = 16800 units hence required days = [(2 × 16800) /(84×2)] = 200 days
If ‘L’ denotes ‘addition’, ‘M’ denotes ‘multiplication’, ‘N’ denotes ‘subtraction’, ‘P’ denotes ‘division’, then what wi...
If ‘P’ means (÷), ‘Q’ means (×), ‘R’ means (+), and ‘S’ means (-), then what is the value of the expression:
900 P 15 R 26 Q 5 ...
Which of the following interchange of sign would make the given equation correct?
45 × 9 + 5 ÷ 4 = 25
Select the correct combination of mathematical signs to replace the '@' signs and balance the given equation.
22 @ 6 @ 18 @ 17 @ 2
Select the correct combination of mathematical signs that can sequentially replace the ‘*’ signs and balance the given equation.
16 * 5 * 35 ...
If A $ B means A X B, A € B means A ÷ B, A & B means A + B and A @ B means A - B, then what is the value of '178 & 100 € 25 @ 18 $ 4 & 22'?
...Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
32 * 366 * 6 * 2 * 134 = 20
If ‘P’ means (÷), ‘Q’ means (×), ‘R’ means (+), and ‘S’ means (-), then what is the value of the expression:
44 S 96 P 12 R 11 ...
If “+” means “minus”, “×” means “divided by”, “÷” means “plus”, and “-“ means then “multiplied by”
260 × 13 ...
Which of the following interchange of numbers and mathematical signs would make the given equation correct?
72 ÷ 8 × 9 − 36 + 20 = 80
