Question
‘A’ and ‘B’ started a business by investing Rs.
‘y’ and Rs. ‘y + 300’, respectively. If 10 months later the ratio of profit shares of ‘A’ and ‘B’ was 3:4, respectively, then find the amount (initially) invested by ‘B’.Solution
ATQ; [(10 × y)/{(y + 300) × 10}] = (3/4) Or, (10y × 4) = 30 × (y + 300) Or, 40y = 30y + 9000 Or, 10y = 9000 So, y = 900 So, initial investment made by ‘B’ = 900 + 300 = Rs. 1,200
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 + 2
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
