Q) The maturity value of a R.D account is Rs. 16,176. If monthly investment is Rs. 400 and the rate of interest is 8%, find the time (period) of this R.D. Account. Ans: Given that: Monthly Instalment, P = Rs. 400 Rate of Interest, r = 8 % Maturity value of RD account = Rs. […]
ICSE
Q) By investing Rs. 45,000 in 10% Rs. 100 shares, Sharad gets Rs. 3,600 as dividend. Find the market value of each share. Ans: Given values: Investment = Rs. 45,000 Rate of dividend = 10% Nominal value = Rs. 100 Annual dividend = Rs. 3,000 Step 1: Let market value of each share be X
By investing Rs. 45,000 in 10% Rs. 100 shares, Sharad gets Rs. 3,600 as dividend. Read More »
Q) Solve the following inequation and write the solution set: 13x – 5 < 15 x + 4 < 7 x + 12, X∈R Ans: Step 1: Let’s take first 2 entries: 13x – 5 < 15 x + 4 ∴ 13 x < 15 x + 4 + 5 ∴ 0 < 2 x
Q) Without solving the following quadratic equation, find the value of ‘m’ for which the given equation has real and equal roots: x2 + 2 (m – 1) x + (m + 5) = 0 Ans:Â Step 1: First, let’s compare the given equation with standard quadratic equation ax2 + bx + c = 0,
Without solving the following quadratic equation, find the value of ‘m’ for which Read More »