Question
40% of ‘p’ added to 60% of ‘q’ gives 150. If
‘q’ is 50 more than ‘p’, find the value of (2p – q)Solution
According to the question, 0.4p + 0.6q = 150…….. (1) And, q – p = 50……. (2) On solving equation (1) and (2), we get p = 100 and q = 150 Therefore, (2p – q) = 200 – 150 = 50
87 D 29 A 12 B 5 C 9 = ?
What will be the value of the given expression after the following interchanges?
Expression: 84 ÷ 11 - 15 X 14 + 75
Interchanges: Sign: '...
- If A # B means A + B, A $ B means A - B, A % B means A X B and A & B means A ÷ B, then what is the value of '52 # 45 $ 72 # 10 % 4 $ 60 & 15'?
A shopkeeper sells rice in such a way that the selling price of 950 gm is the same as the cost price of one kilogram. Find his gain percent.
If ‘+’ means ‘-’, ‘×’ means ‘+’, ‘-’ means ‘÷’ and ‘÷’ means ‘×’, then, what is the value of the following expressio...
Statements:
A < B ≥ C > U = W; R < Q > L ≤ W = Y; Q > P
Conclusions:
I. B < P
II. C > R
In a certain code of language, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘. Wh...
Select the correct combination of mathematical signs to sequentially replace the * signs and to balance the given equation.
30 * 4 * 2 * 1 * 121
If ‘#’ means ‘×’, ‘%’ means ‘+’, ‘^’ means ‘÷’ and ‘*’ means ‘-’, then the value of 36 % 8 * 5 # 4 ^ 2 is ___.
...Which two numbers should be interchanged to make the given equation correct?
620 + 75 ÷ 8 × 35 – 44 × 5 + 15 = 583
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