Question
A jar contains milk and water in the ratio 6:5. After 22
litres of water is added, the new ratio becomes 6:7. Calculate the final amount of the mixture.Solution
ATQ,
Milk : Water = 6:5 → Total = 11 parts
Let total = 11x
→ Milk = 6x, Water = 5x
Water after adding = 5x + 22
New ratio = 6x : (5x + 22) = 6 : 7
Original = 11 × 11 = 121 litres
Final = 121 + 22 = 143 litres
What will come in place of the question mark (?) in the following series?
16, 16, ?, 96, 384, 1920
4, 9, 25, ?, 121, 169
33Â Â Â 41Â Â Â 25Â Â Â 49Â Â Â 17Â Â Â Â ?
120, 157, 116, 159, ?, 165
418, 406, 430, 382, 478, ?, 670
What will come in place of the question mark (?) in the following series?
17, 21, 30, 46, ?, 107
12, 13, 27, 82, 329, ?
16, 8, 8, 12, ?, 60
32   48   96   ?   720   2520
Find the missing number, in the given number series.
6, 12, 36, ?, 720, 4320