Question
A solution has milk and water in the proportion 3:2. After
removing 20 ml of this solution and adding 10 ml milk, the ratio becomes 4:1. Find the total volume of the original solution.Solution
ATQ,
Let milk and water after removal be 3x ml and 2x ml.
Milk after adding 10 ml = (3x + 10) ml
ATQ,
{(3x + 10) / 2x} = 4/1
So, 3x + 10 = 8x
So, 8x - 3x = 10
So, x = 2
So, total quantity = 3×2 + 2×2 + 20 = 6 + 4 + 20 = 30 ml
(20% of 15% of 600 – 6) × 5 + 84 = ?2Â
Evaluate: (768÷16)×(125÷25)−(81÷9)×12
(3984 ÷ 24) x (5862 ÷ 40) = ?
√ 225 x 24 - √ 144 x 18 = ?
Find the value of 27 ÷ 2 of 16 of [6 ÷ 8 of (6 ÷ 2 + 5)] + (10 ÷ 2.5 + 1)
65% of 102 + 14 = ? – 20
What will come in the place of question mark (?) in the given expression?
(1040 ÷ 12) ÷ 19 × 1824 = ?
What will come in the place of question mark (?) in the given expression?
(96 - 59) X 6 + ?2 = 136.5 X 4
25% of 30% of 3/5 of 14500 =?
38 – 3 2 + 5 2 + 6 2 = ? × 6Â