Question
Mixture ‘D’ consists of milk and water in the ratio
4:5. Another mixture ‘E’ has milk and water in the ratio 3:7. If 90 litres of ‘D’ and 70 litres of ‘E’ are mixed together, what will be the ratio of milk to water in the resulting mixture?Solution
ATQ,
Quantity of milk in ‘D’ = (4/9) × 90 = 40 litres
Quantity of water in ‘D’ = (5/9) × 90 = 50 litres
Quantity of milk in ‘E’ = (3/10) × 70 = 21 litres
Quantity of water in ‘E’ = (7/10) × 70 = 49 litres
Required ratio = (40 + 21) : (50 + 49) = 61:99 = 61:99
What will come in the place of question mark (?) in the given expression?
(63 - ?) ÷ 5 + √625 = 19 X (9 - 6)
- What will come in place of (?), in the given expression.
(4² + 6²) × 2 = ? What will come in the place of question mark (?) in the given expression?
(40/25) X 80 - ? = 45% of 300 - 5525.6% of 250 + √? = 119
1220 ÷ 61 ÷ 5 + 450 of 20% - 70 = √ ?
Simplify the expression:
(5x + 15) / (x² + 3x)
What will come in the place of question mark (?) in the given expression?
435 ÷ 29 X 792 ÷ 44 = √(? + 14) + 35 + 221 ÷ 17
...192.251 + 326.233 + 125.021 + 19.273 = ?
36% of 640 – 12.5% of 352 + 25% of 640 = ? – 48% of 432
Simplify the following expressions and choose the correct option.
18 * 15 - {3/5 of 250 + 72}
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