Question
165 litres of Mixture βAβ (water + alcohol) contains
30% water and remaining alcohol while 119 litres of mixture βBβ (milk + water) contains 20 litres more milk than water. Find the sum of quantities of water in both the given mixtures.Solution
Quantity of water in mixture βAβ = 165 Γ 0.30 = 49.5 litres Let the quantity of water in mixture βBβ = βxβ litres Then, quantity of milk in mixture βBβ = (x + 20) litres So, x + (x + 20) = 119 Or, 2x + 20 = 119 Or, x = (119 β 20) Γ· 2 Or, x = 49.5 Therefore, quantity of water in mixture βBβ = x = 49.5 litres So, sum of quantity of water in both the mixtures = 49.5 + 49.5 = 99 litres.
√4761 ÷ 23 + √12769 = ? × 58
(1748 ÷ 8) + 76.8 × 35 =(? × 4) + (42 × 35.5)
(β1296 β 12) Γ 5 = ? + 40
What will come in the place of question mark (?) in the given expression?Β
435 Γ· 29 X 792 Γ· 44 = β(? + 14) + 35 + 221 Γ· 17
...? = 65% of 40% of (20 Γ 250) β 200
[4(1/2) + 4(1/3)] Γ 12 β 42 = ?2
β857375 + β91125 = ? + √6889
35% of 240 β 6 2 = ? 2 β β256
30% of 600 –