Question
A jar contains a mixture of milk and water in the ratio
1:3, respectively. If 7-litres of the mixture is taken out, then the quantity of water left in the mixture will be 33 litres. Find the original quantity of the mixture in the jar.Solution
Total quantity of mixture after removing 7-litres = 33 × (4/3) = 44 litres So, original quantity of the mixture = 44 + 7 = 51 litres
Direction: Which of the following will replace ‘?’ in the given question?
5, 18, ‘?’, 126, 296, 586, 1044
12 3 15 ? 153 756
...7   24    43    66   ?      126
92,  51,  21,  13.5,  x,  4.25
find the value of (10x + x -5)?
97 106 121 138 157 180
...217Â Â Â Â Â 267Â Â Â Â Â 304Â Â Â Â Â 330Â Â Â Â Â Â 348Â Â Â Â Â 357
...25 13.5 12.5 20.75 39.5 ? 302.25
...9 134 170 ? 577 1306
...43 36 50 29 ? 22
...51     53     109     332     ?     6686
...