Question
Ayush invested a certain amount
at a compound interest rate of 20% per annum, compounded annually, for 2 years and earned Rs. 2,376 as interest. What is 75% of the amount he invested?Solution
ATQ,
Let the amount invested = Rs. ‘Y’ ATQ, Y × {1 + (20/100)}2 – Y = 2376 Or, Y × (120/100)2 = Y + 2376 Or, (36Y/25) = Y + 2376 Or, 36Y = 25Y + 59400 So, Y = 59400 ÷ 11 = 5400 Therefore, 75% of amount invested = 5400 × 0.75 = Rs. 4,050
?% of 320 = 40% of 40 × 5
{(481 + 426) 2 - 4 × 481 × 426} = ?
- What will come in place of the question mark (?) in the following questions?
(? × 3)2 - 85 = 115 × 5 + 69
What will come in the place of question mark (?) in the given expression?
? X √36 - 184 = 62 X 4
Solve the following equation.
143 + 14.3 + 1.43 + 0.143 + 0.0143 =?
If A = 0.84181818... then what will be the difference between the numerator and denominator of the lowest fraction form of A?
18% of 200 - 16% of 150 = ?
625 × (?% ÷ 125) = 250% of 10
36 × 15 + 20% 1250 = ? + 296