Question
If the numerator of a fraction is increased by 300% and
the denominator is increase by 600%.The resultant fraction is 1/2. What was the original fraction?Solution
Let the fraction be x/y According to question (x+ 300/100 x)/(y+600/100 y) = 1/2 4x/7y = 1/2 x/y = 7/8
Find the wrong number in the given number series.
27, 388, 712, 996, 1243, 1452
18Â Â Â Â Â 45 Â Â Â Â Â 90 Â Â Â Â Â Â 235Â Â Â Â Â 450 Â Â Â Â Â 1125 Â Â Â Â Â 2250
...A series is given below which contains a wrong term.
(4c – a – 10) , (3b + a – 1) , (bc + a – 1) , (ac + 7b) , (ab + ac + bc + 18) , (3b<...
Find the wrong number in given series.
918, 943, 992, 1073, 1194, 1388
 7    12     33    126    635  Â
1, 4, 20, 126, 1026, 10170
42, 85, 172, 343, 687, 1375
Find the wrong number in the given number series.
7, 12, 19, 28, 39, 53, 67
3, 15, 35, 63, 99, 143
6.5, 11, 22, 25.5, 51, 54.5