Question
A glass contains a mixture of rum and water in the ratio
of 2:5. The total volume of the mixture is 98 liters. If an additional 32 liters of rum is poured into the glass, what will be the new ratio of water to rum in the mixture?Solution
Quantity of rum in 98 litres of mixture =Â 2/7 x 98Â = 28 litres
Quantity of water in 98 litres of mixture =Â 5/7 x 98Â = 70 litres
Quantity of rum in the glass after adding 32 litres of rum = 28 + 32 = 60 litres
Required ratio = 70:60 = 7:6
612, 487,?, 396, 388, 387
Find the missing number in the given number series.
1, 2, 6, 24, 120, ?What will come in place of the question mark (?) in the following series?
36, 85, ?, 230, 330, 451
Find the missing term in the series:
2, 5, 11, 23, 47, ?
What will come in place of the question mark (?) in the following series?
400, 841, 1202, ?, 1716, 1885
44   45    41   50    ?      59    23
...221, 100, 0, -81, ?
...900 Â Â Â 90Â Â Â 18Â Â Â ? Â Â Â Â 2.16Â Â Â Â 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187
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