Question
Cost of two types of pulses is Rs.10 and Rs, 15 per kg,
respectively. If both the pulses are mixed together in the ratio 2:3, then what should be the price of mixed variety of pulses per kg?ÂSolution
(15 – x)/(x – 10) = 2/3 45 – 3x = 2x – 20x 5x = 65 x = 13 Therefore, price of mixed variety of pulses = Rs 13 per kgÂ
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
