Get Started with ixamBee
Start learning 50% faster. Sign in now
Get Started with ixamBee
Start learning 50% faster. Sign in now4x2 – xy + 4y2 4(x2 + y2) – xy 4[(x + y)2 – 2xy] – xy 4(x + y)2 – 9xy ……..(1) x + y = [(√13 + √12)/(√13 - √12)] + [(√13 - √12)/(√13 + √12)] = [(√13 + √12)2 + (√13 - √12)2]/((√13)2 - (√12)2) = [13 + 12 + 2(√13)(√12) + 13 + 12 - 2(√13)(√12)]/2 = 25 xy= [(√13 + √12)/(√13 - √12)][(√13 - √12)/(√13 + √12)] = 1 From eq (1) => 4(25)2 - 9 = 2491
Pipe ‘A’ takes 20 minutes to fill a tank. Pipe ‘B’ takes 35 minutes to empty the same tank. If pipe ‘B’ is opened 17 minutes after pipe ‘A...
A tank has three pipes, X, Y, and Z. X can fill the tank in 8 hours, Y can fill it in 12 hours, and Z can empty it in 6 hours. If X, Y, and Z are opened...
There are 3 inlet and (z-1) outlet pipes attached to a tank. Each inlet pipe takes 40 hours to fill the tank, and each outlet pipe empties the fully fil...
A boy is supposed to distribute Rs.3600 among his three friends P, Q and R in the ratio of 3:2:5 respectively, but mistakenly he distributed in the rati...
A translator ‘X’ and a translator ‘Y’ can translate a book in 12 hours and 18 hours, respectively. If both translators work together, then how m...
Two pipes, A and B, can independently fill the tank in 18 minutes and 20 minutes respectively, while pipe C can empty 8 gallons from the tank in 3 minut...
Tap A can fill a tank in 20 hours and tap B can emptied it is 25 hours. Tap A starts filling and they opened for 1 hour each alternatively in what time ...
Pipe ‘A’ can fill a tank in 12 hours whereas pipe ‘B’ can empty it in 30 hours. If both pipes are opened together while pipe ‘B’ is closed a...
Tap ‘A’ and tap ‘B’ can fill a tank in 40 hours and 36 hours, respectively. If both taps are opened together, then find the time after which tap...
Pipe E can fill a tank in 40 minutes while pipe F can fill the same tank in 50 minutes. If pipe E and F are opened simultaneously, then after how much t...
