Question
In a tank, milk and water are mixed in the ratio 5:2.
After removing 35 litres of this mixture, 6 litres of water are added. If the resulting mixture has milk twice the water, determine the initial quantity of water.Solution
ATQ, Let the quantity of milk initially = 5x litres The quantity of water initially = 2x litres Milk in 35 litres taken out = (35/7) × 5 = 25 litres Water in 35 litres taken out = (35/7) × 2 = 10 litres After removal and adding 6 litres of water: Milk = 5x – 25 Water = 2x – 10 + 6 = 2x – 4 Given: milk is double water, 5x – 25 = 2(2x – 4) 5x – 25 = 4x – 8 x = 17 Initial water = 2 × 17 = 34 litres
The value of [(3√2+2) × (3√2-2)] of 13 + 15 is:
20.05% of 220.05 – 15.15% of 99.99 × 2.02 = ?
63 × 4 = ?2 – 1620 ÷ 5
280 – 70 × 14 ÷ 5 = ? – 21 of 3
What will come in the place of question mark (?) in the given expression?
√1936 + (84 ÷ 2 × 1.5) – 35² + 18² = ?
What will come in place of the question mark (?) in the following expression?
25% of 2000 – 50% of 500 = 100% of ?
(?) + (35)2 = (140)2 – (80)2 + 20% of 5480
33 + ? = 40% of 1420
What value should come in place of the question mark (?) in the following question?
45 × 2 + 180 ÷ 6 − 12 = ?
24% of 35% of (5/8) of 2400 = ?
Relevant for Exams:
