Question
A vessel contains some milk .6 liter of the milk was
taken out of the vessel and replaced with 6 liter of water and again 6 liter of mixture was taken out and was replaced with water. Now the ratio of milk to water become 100:96. Find the initial Quantity of milk in the vessel.Solution
Let the Quantity of milk initially is x liter. Using Direct Formula, =100/100+96 = (x-6 / x)2 =100/196 = (x-6/x)2 x-6/x = 10/14 14x -84 = 10x 4x = 84 X =21 liter
(22 × 52 ) + 4 × 6 = ? - √324
What should come in place of (?) question mark in the given expression.
 (25% of 320) + (3/8 of 400) − 30 = ?
(5832)1/3  × 10.11 × 11.97 ÷ 16.32 = ? + 45.022
82% of 400 + √(?) = 130% of 600 - 85% of 400
If (x + 1/x) = 5, then value of x3 + 1/x3 is:
Simplify: (1 ÷ 0.08)
What should come in place of (?) question mark in the given expression.
{ (144 ÷ 12) × 5 } − (18 ÷ 3) = ?
Simplify the following expressions and choose the correct option.
(3/4 of 256) + (2/5 of 150) - (72 ÷ 7)
464 + 181 +? = (154 × 25) - (15) 2 Â
15% of 1800 + 22 = ?Â