Question
Oil worth Rs. 50/litre and Rs. 60/litre are mixed with a
third variety in the ratio 4:3:1 respectively. If the final mixture is worth Rs. 54/litre, then the price of the third variety of oil is:Solution
Let the quantity of three varieties of oil in the new mixture be ‘4x’ litres, ‘3x’ litres, and ‘x’ litre respectively
Let the price of the third variety of oil be Rs. ‘y’/litre
ATQ:
(50 × 4x) + (60 × 3x) + (y × x) = 54 × (4x + 3x + x)
Or, 200x + 180x + xy = 54 × 8x
Or, 380x + xy = 432x
Or, xy = 52x
Or, y = 52
So, the price of the third variety of oil = Rs. 52/litre
How many people live between the one who likes Sony and Dell?
Who is taller than Rakesh but shorter than Bhaskar?
Who likes Blue?
Statements:
G ≥ J > L ≥ M = Q =T; Q < C = J < B
Conclusions:
I). Â T < B
II).  G ≤ B
...Seven boxes T, E, V, W, X, Y and Z are kept one above another. W is three boxes above Y. There are two boxes between W and Z. T is immediately above V. ...
Who lives on top floor?
Which box is placed at bottom of the stack?
If all the boxes are placed in the alphabetical order from the left end, then how many boxes remain unchanged in its position?
Who among the following born on 5th of February?Â
On which of the following shelf number does Box G is kept from the top?
Relevant for Exams:
