Question
Person A spends 40% more than what he saves. He
allocates 30% of his total spending to cover his rent expenses. If he pays Rs. 2100 as rent, what is his total income?Solution
Let the savings of ‘A’ be Rs. ‘x’ So, expenditure of ‘A’ = x × 1.4 = Rs. ‘1.4x’ Income of ‘A’ = x + 1.4x = Rs. ‘2.4x’ Amount spent on rent = 2100 ATQ; 1.4x × 0.3 = 2100 Or, 0.42x = 2100 So, x = 5000 So, income of ‘A’ = 5000 × 2.4 = Rs.12,000
Which one of the given mathematical operations will result in 429?
Select the correct combination of mathematical signs to replace the '@' signs and balance the given equation.
22 @ 6 @ 18 @ 17 @ 2
If A $ B means A X B, A € B means A ÷ B, A & B means A + B and A @ B means A - B, then what is the value of '178 & 100 € 25 @ 18 $ 4 & 22'?
...After interchanging the given two signs, what will be the value of the given equation? + and ÷
128 - 45 ÷ 72 + 9 X 11
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...
Which two signs should be interchanged to make the following equation correct?
9 × 10 ÷ 2 – 4 = 51 + 2Â
If '$ means +', '# means –, '@ means ×' and '* means ÷', then what is the value of ' 16 $ 4 @ 5 # 72 * 8 ' ?
...Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
5 * 14 * 6 * 8 * 9 * 502
- Which two signs should be interchanged to correct the given equation?
5 + 3 × 8 – 12 ÷ 4 = 3 - If '+' means '-', ' X ' means '+', '-' means '÷' and '÷' means ' X ', then what is the value of the following expression?
54 ÷ 6 X 117 - 9 + 68
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