In a 600-gram mixture, the proportion of Component A to Component B is 3:7. If you add 20 grams of Component A and 80 grams of Component B to the mixture, what will be the new ratio of Component B to Component A in the resultant mixture?
ATQ, Quantity of Component A in mixture = (3/10) × 600 = 180 grams Quantity of Component B in mixture = 600 – 180 = 420 grams According to question, Desired ratio = (420 + 80):(180 + 20) = 5:2
108   329   ?    2975    8928    26789  Â
24 ? 14 16 39 88.5
...200 ? 96 38.4 7.68 0
...48Â Â Â 24Â Â Â Â 72Â Â Â Â 18Â Â Â Â Â 90Â Â Â Â Â ?
What will be the next number in the series?
2,5,11,23,47,?
14Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 16Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 20Â Â Â Â Â Â Â Â Â Â Â 15Â Â Â Â Â Â Â Â Â Â 25Â Â Â Â Â Â Â Â Â Â Â...
16     17      25      ?     99    180
...18   22    49    ?       190    226
...157, 159, 189, 319, ‘?’, 1 407 , 2749 Â
21, 37, 62, 98, 147, ?
