Question
The income of 'E' is Rs. 50,000 while the income of 'F'
is 20% more than that of 'E'. The ratio of expenditure and savings of 'E' is 2:3, respectively. 'F' spends Rs. 6,000 more than he saves. The expenditure of 'F' is how much percent of the savings of 'E'?Solution
ATQ, Income of 'F' = 50,000 × 1.20 = Rs. 60,000 Let the saving of 'F' = Rs. 'Y' Then, expenditure of 'F' = Rs. (Y + 6,000) So, Y + Y + 6,000 = 60,000 Or, 2Y + 6,000 = 60,000 So, Y = (60,000 - 6,000) ÷ 2 = 27,000 So, expenditure of 'F' = 27,000 + 6,000 = Rs. 33,000 Savings of 'E' = 50,000 × (3/5) = Rs. 30,000 So, required percentage = (33,000 ÷ 30,000) × 100 = 110%
Given that (3a + 7b = 54) and (ab = 24), determine the value of (9a2 + 49b2).
The certain sum amounts to Rs11313.5 in 2(1/2) years at 12% p.a., interest compounded 10 months. The sum (in Rs) is:
Find the number of zeroes in 18 × 125 × 20 × 32.
If (2a + b)/(3b - 2b) = 13/2 then 'b' is what percent of 'a'?

   = ?If (a + b) = 17 and (a2 + b2) = 145, then find the value of (a × b).
If x² + y² + z² = xy + yz + zy (x≠0), then the value of (5x+3y-4z)/2x is
when x =4 and y =-6 then find the value of 27x³ +58x²y +31xy² +8y³?
What will come in the place of question mark (?) in the given expression?
?2 = (392 × 224) ÷ (112 × 28) + 62