Question
The Price of 1 litre pure milk is Rs 50. By adding some
water in it and selling the mixture in Rs 60 one gets 25% profit, then find the ratio of milk and water in the mixture?Solution
Cost price of 1 litre milk = Rs 50 Selling price of 1 litre mixture = Rs 60 Profit = 25% So cost price of mixture = 60 × 100/125 = Rs 48 The ratio of milk and water in mixture Pure milk water 
= 48:2 = 24:1
(480 + 340 - ?) × (3/19) = 90Â
√121 + √961− √289 =?2
The value of 42 ÷ 9 of 6 - [64 ÷  48 x 3 – 15 ÷ 8 x (11 – 17) ÷ 9] ÷ 14 is:
What value should come in the place of (?) in the following questions?
320 + 162 – 55% of 720 = 5 * ?2
What value should come in the place of (?) in the following questions?
70% of 240 + 75% of ? = 45 * 55 ÷ 5
(6630 ÷ 13 + 6120 ÷ 12) ÷ (17 × 3) = ?Â
22.5% of 300 + 32.5% of 4500 =?
[∛(91125/19683 )- ∛(3375/5832 ) ] × ∛(512/9261) = ? - √(484/3969)
132 × 3 ÷ 11 + 67 − ? = 64 ÷ 8 × 2
What will come in place of the question mark (?) in the following expression?
(320 ÷ 8 + 22) × 4 = 60 + 40% of ?
