Question
A 48 litres mixture of milk and water contains them in the
ratio 3:1. After removing 12 litres of the mixture and replacing it with βxβ litres of water, the resulting mixture has water to milk ratio of 1:1. What is the value of βxβ?Solution
ATQ,
Quantity of remaining mixture = 48 β 12 = 36 litres
Quantity of milk in 36 litres of mixture = 36 Γ (3/4) = 27 litres
And, quantity of water in 36 litres = 36 β 27 = 9 litres
So, quantity of water in resultant mixture = (1/1) Γ 27 = 27 litres
Required quantity of water added = 27 β 9 = 18 litres
So, x = 18
What value should come in place of (?) in the given expression.
450 Γ· 9 + 75% of 160 β 64 Γ· 4 = ?
2/5 of 3/4 of 7/9 of 14400 = ?
7/3 of 4/5 of 15/56 of ? = 83
[564 + 32 of 18 Γ 9 Γ· 12 + 162 ] Γ· 4 = ?
What should come in place of (?) question mark in the given expression.
Β (25% of 320) + (3/8 of 400) β 30 = ?
45% of 360 - 160 + ? = β324
187 ÷ 5 ÷ 0.4 = ? – 24 × 2.4
Find the simplified value of the following expression:
[{12 + (13 Γ 4 Γ· 2 Γ· 2) Γ 5 β 8} + 13 of 8]
18 Γ 15 + 86 β 58 =? + 38
Β
√(24²+285-8²-172) = ?²