MBA
Exam
If xΔ(y +1) = yΔ(x +1),xΔ x = 1 and (x − y)Δ(x + y) = xΔ y, then what is the value of 1001Δ1?Discuss please... 1) 1000 2) 100 3) 10 4) 1 5) 0
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MBA Other Question
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Of three taps X, Y and Z, Y takes 2 times as much time as X and Z together, while X takes 20 minutes more than Y and Z together, to fill a tank. If the three taps together fill the tank in 24 minutes, then how long does X take to fill the tank individually?
Plz follow up with method... 1) 30 min 2) 60 min 3) 90 min 4) 120 min