Question
A and B can complete a work together in 36 days. If A
alone can complete one-fourth of the work in ‘x’ days and remaining work is completed by B alone in 3x days, then find the value of x.Solution
Time taken by A to complete the work = (x × 4) = 4x days Time taken by B to complete the work = (3x × 4/3) = 4x days According to question, => (1/4x) + (1/4x) = 1/36 => (1 + 1)/4x = 1/36 => 4x = 72 => x = 18
Four terms are in proportion. The first, second and fourth terms are 4, 22, and 33. Find the third term.
4Â Â Â Â Â Â Â Â Â Â Â Â Â Â 7Â Â Â Â Â Â Â Â Â Â Â Â Â Â 24Â Â Â Â Â Â Â Â Â Â Â 91Â Â Â Â Â Â Â Â Â Â Â 462Â Â Â Â Â Â Â Â Â 2763
18Â Â Â ...
A series is 11, 20, 42, 82, 166, 330
If another series 4, a, b, c, d, 106 follows the same pattern as the given number series, then find the appr...
12, 24, 72, 288, 1440, ?
60  61  126  387  ?   7845
315 146 267 ? 235 210
Three series are given below. You have to find the values of P, Q and R, then establish a relationship among them.
I:Â Â 840, P , 584, 456, 5...
28 34 63 ? 769 3847
...105   107   111   114   ?   127
4 5.5 19 .5 98.5 694 6251.5
...
