Question
"X" acquired 15 books at a cost of Rs. 840 each and an
additional 25 books at a price of Rs. 480 each. Determine the average price per book "X" bought.Solution
ATQ, Total price of all the books purchased by ‘X’ = 15 × 840 + 25 × 480 = 12600 + 12000 = Rs. 24600 Total number of books purchased = 15 + 25 = Rs. 40 Required average price = 24600/40 = Rs.615
Select the correct combination of mathematical signs that can sequentially replace '*' sign and balance the equation given below.
12* 6 * 3 * 54 * 9 * 12
Which two signs should be interchanged to make the following equation correct?
52 – 27 ÷ 9 + 7 × 5 = 20
Which two signs should be interchanged to make the below equation mathematically correct?
9 ÷ 3 + 6 – 6 × 2 = 30
Monthly income of A is Rs. 6000 and he saves 25% of his monthly income. If monthly expenditure of A is decreased by 35% while his monthly savings is inc...
 In the word ‘PAVEMENT’, first all the opposites of each letter are written, then all the letters formed are written in an alphabetical order form,...
If '!' means ' - ', '#' means '+', '%' means '÷' and '@' means ' X ', then what is the value of the following expression?
25 # 3 % 15 @ 35 ! 23
If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
480 - 12 + 250 X 3...
If the following interchanges are made in signs, then what would be the value of the following expression?
48 X 63 + 2 ÷ 9 - 35Â
Interch...
Select the correct combination of mathematical signs that can sequentially replace the ‘*’ signs and balance the given equation.
11 * 4 * 55 ...
If 'A' stands for '-', 'B' stands for '×', 'C' stands for '+', and 'D' stands for '÷', then what is the value of the following expression.
45 D...
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