Question
4%of the selling price of an article is equal to 5% of
its cost price. Again 20% of the selling price is Rs.120 more than 22%ofits cost price. The ratio of cost price & selling price isSolution
let Selling price be SP , Cost price be CP 4% of SP = 5% CP SP = (5/100)×(100/4) CP = 5/4 CP SP = 5/4 CP ---------> using this in the below equation 20% of SP = 120 + 22% of CP (20/100)×(5/4) CP = 120 +22% CP 1/4 CP = 120 +22/100 CP 1/4 CP – 22/100 CP = 120 3/100 CP = 120 CP = 4000 SP = 5/4 × 4000 = 5000 CP :SP = 4000:5000 = 4:5
15, 42, 56, 183, 219, 562Â
53, 57, 66, 82, 117, 143, 192
112, 125, 99, 138, 86, 153
Find the wrong number in the given number series.
29, 60, 123, 250, 515, 1016
8Â Â Â 12Â Â Â 21Â Â Â Â 36Â Â Â Â 62Â Â Â Â Â 98Â Â Â
- Find the wrong number in the given number series.
420, 369, 318, 277, 238, 225 - Find the wrong number in the given number series.
2, 6, 14, 30, 62, 126 Find the wrong number in the given number series.
3600, 1440, 576, 230.4, 92.24, 36.864
- Find the wrong number in the given number series.
5, 8, 18, 24, 37, 48 Find the wrong number in the given number series.
12, 24, 72, 216, 1440, 8640