Question
A merchant has 20 liters of alcohol. To achieve a 75%
profit by selling the mixture at the original cost price of the alcohol, how much water should he mix with the alcohol?Solution
Quantity of water to be added = 20 × 0.75 = 15 litres Hence, option c.
If ‘P’ means (÷), ‘Q’ means (×), ‘R’ means (+), and ‘S’ means (-), then what is the value of the expression:
44 S 96 P 12 R 11 ...
Out of the total number of players, 100/3 % are in hotel X and the remaining are in hotel Y. If 20 players from hotel Y are shifted to hotel X, then the...
If 236 = 33, 487 = 57, 6391 = 57, then 851 = ?
In a given code form:
P + Q means P - Q
P ÷ Q means P × Q
P × Q means P + Q
P - Q means P ÷ Q
What is the correct...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
48 * 495 * 5 * 2 * 120 = 126
If ‘÷’ means ‘addition’, ‘+’ means ‘subtraction’, ‘-’ means ‘multiplication’, and ‘x’ means ‘division’, what will be th...
Which two signs should we interchange inorder to make the given equation true?
36 × 5 - 84 ÷ 4 + 50 = 151
By interchanging the given two numbers (not digits), which of the following equations will be correct?
24 and 15
I. 113 + 24 - 17 X 1...
If A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation...
Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
8 * 12 * 7 * 5 * 3 * 201
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