Question
I. 2x² - 9x + 10 = 0 II. 3y² + 11y + 6
= 0 In the following questions, two equations numbered I and II are given. You have to solve both the equations and give answer.Solution
I. 2x² - 9x + 10 = 0 2x² - 5x - 4 x + 10 = 0 x (2 x – 5) – 2(2 x – 5) = 0 (x – 2) (2 x – 5) = 0 x = 2, 5/2 II. 3y² + 11y + 6 = 0 3y² + 2y + 9 y + 6 = 0 y (3 y + 2) + 3(3 y + 2) = 0 y = -3, -2/3 Hence, x>y
If Rs. 15000 is invested at 14% per annum, compounded yearly, calculate the interest earned in one year.
Simple interest on a sum at 12% p.a. for 3 years is ₹2160. Find the compound interest on the same sum at 10% p.a. for 2 years.
A sum of ₹12,000 is invested at an annual interest rate of 10% for 2 years. What is the difference between the compound interest and simple interest a...
- The compound interest on a certain principal for 2 years at 7% per annum compounded annually is Rs. 289.80. What will be the simple interest for the same d...
In what time will Rs. 2500 amount to Rs. 3327.5 @ 20% compound interest payable half-yearly?Â
A certain sum of money at simple interest amounts to Rs 7200 in 3 years and Rs 8000 in 5 years. What is the rate of interest per annum?
Aman invested Rs. 'a' and Rs. (a + 2300) in SIP 'P' and 'Q', respectively, in a way that the amounts received from both SIPs after 2 years are equal. If...
At what annual compound interest rate will a principal amount of Rs. 16,000 grow to Rs. 25,000 in 2 years?
If the ratio of the sum invested and simple interest received after 1 year is 20:9 respectively, then find the rate of interest.
The interest obtained by investing Rs. (3p + 100) at a simple interest rate of 10% p.a. for 5 years is Rs. (2p + 250). Find the ratio (p - 75) : (p + 125).
Relevant for Exams:
- SBI PO
- IBPS PO
- RBI Grade B
- IBPS RRB Clerk
- NABARD GRADE A
- IBPS RRB Scale 2
- IBPS RRB Scale 3
- NIACL Assistant Recruitment
- SEBI Grade A
- ESIC SSO
- FCI Assistant Grade 3
- NPS Trust Grade B Officer
- IRDAI Assistant Manager
- NABARD GRADE A
- NIACL Assistant
- CBI Credit Officer (Scale 1)
- Central Bank of India (CBI) Credit Officer
- RBI Grade B