Question
36 liters of milk were kept in a container. 1.8 liters
were removed and replaced with water. This procedure was performed one more time. How much milk does the container now hold?Solution
we know. remaining milk in the container = Original amount × [1- amount taken out /original amount] ⁿ = 36[1-1.8/36] ² =36[1-1/20] ² = 36[19/20] ² =36×361/400 =361×9/100 =3249/100=32.49
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 90 18 ? 2.16 1.08
16, 20, 11, 27, ?, 38
37, 57, 82, ?, 147, 187